public void BookCargo(Cargo.Cargo cargo, Vessel.Vessel vessel)
 {
     try
     {
         vessel.Add(cargo);
         _bookingRepository.Add(
             new Booking(
                 cargo,
                 vessel,
                 new ConfirmationNumber(_integerSequenceGenerator.GetNext())));
     }
     catch (CargoExceedesVesselCapacityException ex)
     {
         _console.WriteLine(ex.Message);
     }
 }