Index: backend/DTOs/AuthenticateRequest.cs
===================================================================
--- backend/DTOs/AuthenticateRequest.cs	(revision b66b3acb77c10d451916af5571fc0b31168ad254)
+++ backend/DTOs/AuthenticateRequest.cs	(revision 057037b3df07d92e2be689285380664471687a07)
@@ -6,5 +6,5 @@
 {
     [Required]
-    public string Username { get; set; }
+    public string Email { get; set; }
 
     [Required]
Index: backend/DTOs/AuthenticateResponse.cs
===================================================================
--- backend/DTOs/AuthenticateResponse.cs	(revision b66b3acb77c10d451916af5571fc0b31168ad254)
+++ backend/DTOs/AuthenticateResponse.cs	(revision 057037b3df07d92e2be689285380664471687a07)
@@ -1,3 +1,4 @@
 using backend.Entities;
+using Newtonsoft.Json;
 
 namespace backend.Models;
@@ -6,14 +7,9 @@
 public class AuthenticateResponse
 {
+    [JsonProperty]
     public int Id { get; set; }
-    public string Username { get; set; }
+    [JsonProperty]
+    public string Email { get; set; }
+    [JsonProperty]
     public string Token { get; set; }
-
-
-    public AuthenticateResponse(User user, string token)
-    {
-        Id = user.Id;
-        Username = user.Username;
-        Token = token;
-    }
 }
Index: backend/DTOs/CreateReservationRequest.cs
===================================================================
--- backend/DTOs/CreateReservationRequest.cs	(revision 057037b3df07d92e2be689285380664471687a07)
+++ backend/DTOs/CreateReservationRequest.cs	(revision 057037b3df07d92e2be689285380664471687a07)
@@ -0,0 +1,27 @@
+﻿using backend.Entities;
+using Newtonsoft.Json;
+
+namespace backend.DTOs
+{
+    public class CreateReservationRequest
+    {
+        [JsonRequired]
+        [JsonProperty]
+        public DateTime StartDate { get; set; }
+        [JsonRequired]
+        [JsonProperty]
+        public ReservationPlace ReservationPlace { get; set; }
+        [JsonRequired]
+        [JsonProperty]
+        public ReservationType ReservationType { get; set; }
+        [JsonRequired]
+        [JsonProperty]
+        public int Persons { get; set; }
+        [JsonRequired]
+        [JsonProperty]
+        public string ContactName { get; set; }
+        [JsonRequired]
+        [JsonProperty]
+        public string ContactNumber { get; set; }
+    }
+}
Index: backend/DTOs/CreateUserRequest.cs
===================================================================
--- backend/DTOs/CreateUserRequest.cs	(revision 057037b3df07d92e2be689285380664471687a07)
+++ backend/DTOs/CreateUserRequest.cs	(revision 057037b3df07d92e2be689285380664471687a07)
@@ -0,0 +1,13 @@
+﻿using Newtonsoft.Json;
+
+namespace backend.DTOs
+{
+    public class CreateUserRequest
+    {
+        [JsonProperty]
+        public string Email { get; set; }
+
+        [JsonProperty]
+        public string Password { get; set; }
+    }
+}
Index: backend/DTOs/ReservationResponse.cs
===================================================================
--- backend/DTOs/ReservationResponse.cs	(revision 057037b3df07d92e2be689285380664471687a07)
+++ backend/DTOs/ReservationResponse.cs	(revision 057037b3df07d92e2be689285380664471687a07)
@@ -0,0 +1,25 @@
+﻿using backend.Entities;
+using Newtonsoft.Json;
+
+namespace backend.DTOs
+{
+    public class ReservationResponse
+    {
+        [JsonProperty]
+        public int Id { get; set; }
+        [JsonProperty]
+        public DateTime StartDate { get; set; }
+        [JsonProperty]
+        public ReservationPlace ReservationPlace { get; set; }
+        [JsonProperty]
+        public ReservationStatus ReservationStatus { get; set; }
+        [JsonProperty]
+        public ReservationType ReservationType { get; set; }
+        [JsonProperty]
+        public int Persons { get; set; }
+        [JsonProperty]
+        public string ContactName { get; set; }
+        [JsonProperty]
+        public string ContactNumber { get; set; }
+    }
+}
Index: backend/DTOs/RestaurantResponse.cs
===================================================================
--- backend/DTOs/RestaurantResponse.cs	(revision 057037b3df07d92e2be689285380664471687a07)
+++ backend/DTOs/RestaurantResponse.cs	(revision 057037b3df07d92e2be689285380664471687a07)
@@ -0,0 +1,16 @@
+﻿using Newtonsoft.Json;
+
+namespace backend.DTOs
+{
+    public class RestaurantResponse
+    {
+        [JsonProperty]
+        public int Id { get; set; }
+        [JsonProperty]
+        public int? OwnerId { get; set; }
+        [JsonProperty]
+        public List<ReservationResponse> Reservations { get; set; }
+        [JsonProperty]
+        public string Name { get; set; }
+    }
+}
