public ReservationConfirmation(
string confirmationNumber, Reservation reservation)
{
this.confirmationNumber = confirmationNumber;
this.reservation = reservation;
}
public ReservationConfirmation Book(Reservation reservation)
{
if (reservation == null)
{
throw new ArgumentNullException("reservation", "The 'reservation' argument is required.");
}
return new ReservationConfirmation(Guid.NewGuid().ToString("N").Substring(17, 5).ToUpper(), reservation);
}
