private void ContinueProcess()
        {
            if (this.airportTransfer.Airport != null)
            {
                ExtrasPage.SelectAirportTransferAirport(this.airportTransfer.Airport);
            }
            if (this.airportTransfer.TransferNumber != null)
            {
                ExtrasPage.ClickAirportTransterUpdate();
                ExtrasPage.CheckTransferNumber(this.airportTransfer.TransferNumber.Value);
            }

            if (this.airportParking.DepartureAirport != null)
            {
                ExtrasPage.SelectAirportParkingDepartureAirport(this.airportParking.DepartureAirport);
            }
            if (this.airportParking.DropoffTime != null)
            {
                ExtrasPage.SelectAirportParkingDropoffTime(this.airportParking.DropoffTime);
            }
            if (this.airportParking.PickupTime != null)
            {
                ExtrasPage.SelectAirportParkingPickupTime(this.airportParking.PickupTime);
            }
            if (this.airportParking.ParkingNumber != null)
            {
                ExtrasPage.CheckAirportParkingNumber(this.airportParking.ParkingNumber.Value);
            }
        }