Заполнение интерфейсов.

Hotel/HotelDataModels/Models/IConferenceBookingModel.cs

@@ -2,5 +2,7 @@
 {
     public interface IConferenceBookingModel : IId
     {
+        int HeadwaiterId { get;}
+        int ConferenceId { get; }
     }
 }

Hotel/HotelDataModels/Models/IDinnerModel.cs

@@ -2,5 +2,8 @@
 {
     public interface IDinnerModel : IId
     {
+        string DinnerName { get; }
+        double DinnetPrice { get; }
+        int HeadwaiterId { get; }
     }
 }

Hotel/HotelDataModels/Models/IHeadwaiterModel.cs

@@ -3,6 +3,10 @@ namespace HotelDataModels.Models
 {
     public interface IHeadwaiterModel : IId
     {
-
+        string HeadwaiterFIO { get; }
+        string HeadwaiterPassword { get; }
+        string HeadwaiterLogin { get; }
+        string HeadwaiterEmail { get; }
+        string HeadwaiterNumber { get; }
     }
 }

Hotel/HotelDataModels/Models/IRoomModel.cs

@@ -3,5 +3,10 @@ namespace HotelDataModels.Models
 {
     public interface IRoomModel : IId
     {
+        string RoomName { get; }
+        string RoomFrame { get; }
+        double RoomPrice { get; }
+        int HeadwaiterId { get; }
+        int MealPlanId { get; }
     }
 }