partial void DeleteReservation(Reservation instance);
 partial void UpdateReservation(Reservation instance);
		private void detach_Reservations(Reservation entity)
		{
			this.SendPropertyChanging();
			entity.Guest = null;
		}
 partial void InsertReservation(Reservation instance);
		private void attach_Reservations(Reservation entity)
		{
			this.SendPropertyChanging();
			entity.Guest = this;
		}