public ActionResult AddNewBooking(BookingViewModel bvmodel)
 {
     if (bvmodel.EndDate > bvmodel.StartDate)
     {
         var bookingid = _bookingService.AddBooking(bvmodel.StartDate, bvmodel.EndDate);
         _bookingService.AddBookingRoom(bookingid, bvmodel.Room.Id);
     }
     return(RedirectToAction("ShowAllBookings"));
 }