private void ServInRoom(object sender, RoutedEventArgs e)
 {
     if (Hotel.IsRoom != null)
     {
         ServiseRoom SR = new ServiseRoom();
         SR.Show();
     }
 }
        private void ServInRoom(object sender, RoutedEventArgs e)
        {
            ServiseRoom SR = new ServiseRoom();

            SR.Show();
        }