diff --git a/Hotel/HotelContracts/SearchModels/ConferenceSearchModel.cs b/Hotel/HotelContracts/SearchModels/ConferenceSearchModel.cs
index a27f1d2..216a781 100644
--- a/Hotel/HotelContracts/SearchModels/ConferenceSearchModel.cs
+++ b/Hotel/HotelContracts/SearchModels/ConferenceSearchModel.cs
@@ -4,5 +4,8 @@
     {
         public int? Id { get; set; }
         public string? ConferenceName { get; set; }
+        public int? OrganiserId { get; set; }
+        public DateTime? DateFrom { get; set; }
+        public DateTime? DateTo { get; set; }
     }
 }
diff --git a/Hotel/HotelDataBaseImplement/Implemets/ConferenceStorage.cs b/Hotel/HotelDataBaseImplement/Implemets/ConferenceStorage.cs
index 1be587d..0b7c0bb 100644
--- a/Hotel/HotelDataBaseImplement/Implemets/ConferenceStorage.cs
+++ b/Hotel/HotelDataBaseImplement/Implemets/ConferenceStorage.cs
@@ -2,6 +2,8 @@
 using HotelContracts.SearchModels;
 using HotelContracts.StoragesContracts;
 using HotelContracts.ViewModels;
+using HotelDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
 
 namespace HotelDataBaseImplement.Implemets
 {
@@ -9,32 +11,149 @@ namespace HotelDataBaseImplement.Implemets
     {
         public ConferenceViewModel? Delete(ConferenceBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+
+            var element = context.Conferences
+                .FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Conferences.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
         }
 
         public ConferenceViewModel? GetElement(ConferenceSearchModel model)
         {
-            throw new NotImplementedException();
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new HotelDataBase();
+
+            return context.Conferences
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.MealPlanMember)
+                .ThenInclude(x => x.MealPlan)
+                .Include(x => x.ConferenceBookings)
+                .Include(x => x.Organiser)
+                .FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?
+                .GetViewModel;
         }
 
         public List<ConferenceViewModel> GetFilteredList(ConferenceSearchModel model)
         {
-            throw new NotImplementedException();
+            if (!model.DateFrom.HasValue && !model.DateTo.HasValue && !model.OrganiserId.HasValue)
+            {
+                return new();
+            }
+            using var context = new HotelDataBase();
+
+            if (model.DateFrom.HasValue)
+            {
+                return context.Conferences
+                        .Include(x => x.Members)
+                        .ThenInclude(x => x.Member)
+                        .ThenInclude(x => x.MealPlanMember)
+                        .ThenInclude(x => x.MealPlan)
+                        .Include(x => x.ConferenceBookings)
+                        .Include(x => x.Organiser)
+                        .Where(x => x.StartDate >= model.DateFrom && x.StartDate <= model.DateTo)
+                        .Select(x => x.GetViewModel)
+                        .ToList();
+            }
+            else if (model.OrganiserId.HasValue)
+                return context.Conferences
+                    .Include(x => x.Members)
+                    .ThenInclude(x => x.Member)
+                    .ThenInclude(x => x.MealPlanMember)
+                    .ThenInclude(x => x.MealPlan)
+                    .Include(x => x.ConferenceBookings)
+                    .Include(x => x.Organiser)
+                    .Where(x => x.OrganiserId == model.OrganiserId)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+
+            return context.Conferences
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.MealPlanMember)
+                .ThenInclude(x => x.MealPlan)
+                .Include(x => x.ConferenceBookings)
+                .Include(x => x.Organiser)
+                .Where(x => x.Id == model.Id)
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public List<ConferenceViewModel> GetFullList()
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+
+            return context.Conferences
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.MealPlanMember)
+                .ThenInclude(x => x.MealPlan)
+                .Include(x => x.ConferenceBookings)
+                .Include(x => x.Organiser)
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public ConferenceViewModel? Insert(ConferenceBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+            var newConference = Conference.Create(context,model);
+
+            if (newConference == null)
+            {
+                return null;
+            }
+
+            context.Conferences.Add(newConference);
+            context.SaveChanges();
+
+            return context.Conferences
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.MealPlanMember)
+                .ThenInclude(x => x.MealPlan)
+                .Include(x => x.ConferenceBookings)
+                .Include(x => x.Organiser)
+                .FirstOrDefault(x => x.Id == newConference.Id)
+                ?.GetViewModel;
         }
+    
 
         public ConferenceViewModel? Update(ConferenceBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+
+            var order = context.Conferences
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.MealPlanMember)
+                .ThenInclude(x => x.MealPlan)
+                .Include(x => x.ConferenceBookings)
+                .Include(x => x.Organiser)
+                .FirstOrDefault(x => x.Id == model.Id);
+
+            if (order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            context.SaveChanges();
+
+            return order.GetViewModel;
         }
     }
 }
diff --git a/Hotel/HotelDataBaseImplement/Implemets/MealPlanStorage.cs b/Hotel/HotelDataBaseImplement/Implemets/MealPlanStorage.cs
index e5fe4fc..43f1278 100644
--- a/Hotel/HotelDataBaseImplement/Implemets/MealPlanStorage.cs
+++ b/Hotel/HotelDataBaseImplement/Implemets/MealPlanStorage.cs
@@ -2,6 +2,8 @@
 using HotelContracts.SearchModels;
 using HotelContracts.StoragesContracts;
 using HotelContracts.ViewModels;
+using HotelDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
 
 namespace HotelDataBaseImplement.Implemets
 {
@@ -9,32 +11,103 @@ namespace HotelDataBaseImplement.Implemets
     {
         public MealPlanViewModel? Delete(MealPlanBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+
+            var element = context.MealPlans
+                .FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.MealPlans.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
         }
 
         public MealPlanViewModel? GetElement(MealPlanSearchModel model)
         {
-            throw new NotImplementedException();
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new HotelDataBase();
+
+            return context.MealPlans
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.ConferenceMember)
+                .ThenInclude(x => x.Conference)
+                .Include(x => x.Rooms)
+                .Include(x => x.Organiser)
+                .FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?
+                .GetViewModel;
         }
 
         public List<MealPlanViewModel> GetFilteredList(MealPlanSearchModel model)
         {
-            throw new NotImplementedException();
+            if (string.IsNullOrEmpty(model.MealPlanName))
+            {
+                return new();
+            }
+
+            using var context = new HotelDataBase();
+
+            return context.MealPlans
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.ConferenceMember)
+                .ThenInclude(x => x.Conference)
+                .Include(x => x.Rooms)
+                .Include(x => x.Organiser)
+                .Where(x => x.MealPlanName.Contains(model.MealPlanName))
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public List<MealPlanViewModel> GetFullList()
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+            return context.MealPlans
+                .Include(x => x.Members)
+                .ThenInclude(x => x.Member)
+                .ThenInclude(x => x.ConferenceMember)
+                .ThenInclude(x => x.Conference)
+                .Include(x => x.Rooms)
+                .Include(x => x.Organiser)
+                .Select(x => x.GetViewModel)
+                .ToList();
         }
 
         public MealPlanViewModel? Insert(MealPlanBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+            var newMealPlan = MealPlan.Create(context,model);
+
+            if (newMealPlan == null)
+            {
+                return null;
+            }
+            
+            context.MealPlans.Add(newMealPlan);
+            context.SaveChanges();
+            return newMealPlan.GetViewModel;
         }
 
         public MealPlanViewModel? Update(MealPlanBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new HotelDataBase();
+            var mealPlan = context.MealPlans.FirstOrDefault(x => x.Id == model.Id);
+            if (mealPlan == null)
+            {
+                return null;
+            }
+            mealPlan.Update(model);
+            context.SaveChanges();
+            return mealPlan.GetViewModel;
         }
     }
 }
diff --git a/Hotel/HotelDataBaseImplement/Models/ConferenceMember.cs b/Hotel/HotelDataBaseImplement/Models/ConferenceMember.cs
index 1c3d5de..dde204b 100644
--- a/Hotel/HotelDataBaseImplement/Models/ConferenceMember.cs
+++ b/Hotel/HotelDataBaseImplement/Models/ConferenceMember.cs
@@ -12,7 +12,7 @@ namespace HotelDataBaseImplement.Models
         [Required]
         public int ConferenceId { get; set; }
 
-        public virtual Conference Conference { get; set; } = new();
-        public virtual Member Member { get; set; } = new();
+        public virtual Conference Conference { get; set; }
+        public virtual Member Member { get; set; }
     }
 }
diff --git a/Hotel/HotelDataBaseImplement/Models/MealPlanMember.cs b/Hotel/HotelDataBaseImplement/Models/MealPlanMember.cs
index 4865f6a..35939df 100644
--- a/Hotel/HotelDataBaseImplement/Models/MealPlanMember.cs
+++ b/Hotel/HotelDataBaseImplement/Models/MealPlanMember.cs
@@ -12,7 +12,7 @@ namespace HotelDataBaseImplement.Models
         [Required]
         public int MealPlanId { get; set; }
 
-        public virtual MealPlan MealPlan { get; set; } = new();
-        public virtual Member Member { get; set; } = new();
+        public virtual MealPlan MealPlan { get; set; } 
+        public virtual Member Member { get; set; }
     }
 }