public JsonResult AddRoomReservation(DateTime dateOfStart, DateTime dateOfEnd, int roomId, int reservationId) { RoomService service = new RoomService(); var room = service.AddRoomReservation(dateOfStart, dateOfEnd, roomId, reservationId); return(new JsonResult() { Data = new { Room = room }, ContentEncoding = Encoding.UTF8, JsonRequestBehavior = JsonRequestBehavior.AllowGet }); }