public JsonResult GetAvailableRooms(string text)
        {
            TreatmentRoom_Api roomApi = new TreatmentRoom_Api();

            TreatmentRoomModel room = new TreatmentRoomModel();

            room.date = DateTime.Parse(text);
            IEnumerable <string> availableRooms = roomApi.GetAvailableRooms(room).Select(r => r.room_ID);

            var ra = room.roomList;

            var displayRooms = new List <RoomValues>();

            try
            {
                displayRooms = ra.Where(r => availableRooms.Contains(r.Value)).ToList();
            }
            catch (Exception ex)
            {
            }
            return(Json(displayRooms, JsonRequestBehavior.AllowGet));
        }