public ActionResult BookRoom(int Id)
        {
            Room            model      = repository.GetRoomById(Id);
            List <DateTime> list       = repository.GetDaysBookedRoom(Id);
            List <string>   liststring = new List <string>();

            foreach (var item in list)
            {
                liststring.Add(item.ToShortDateString());
            }

            BookRoomViewModel viewmodel = new BookRoomViewModel();

            viewmodel.room = model;
            viewmodel.list = liststring;

            return(View(viewmodel));
        }