using System;

using System.Collections;

public class Program

{

    public static void Main()

    {

        Passenger passenger1,passenger2,passenger3,passenger4;

        passenger1 = new Passenger(){FullName = "Shivarani", Destination = "Australia", TravelDate = DateTime.Now,Carrier = "AirCanada"};

        passenger2 = new Passenger(){FullName = "Alekya", Destination = "England", TravelDate = DateTime.Now,Carrier = "Lufthansa"};

        passenger3 = new Passenger(){FullName = "Rohan", Destination = "Florida", TravelDate = DateTime.Now,Carrier = "Air USA"};

        passenger4 = new Passenger(){FullName = "VenuMadhav", Destination = "Bali", TravelDate = DateTime.Now,Carrier = "Air Indonesia"};

        Airport airport1,airport2,airport3,airport4;

        airport1 = new Airport(){GateNum = "G23", CarrierNum = "AK908", SeatNum = "S23,S45"};

        airport2 = new Airport(){GateNum = "G23", CarrierNum = "LH678", SeatNum = "S23,S45"};

        airport3 = new Airport(){GateNum = "L23", CarrierNum = "KL345", SeatNum = "S23,S45"};

        airport4 = new Airport(){GateNum = "B23", CarrierNum = "ID657", SeatNum = "S23,S45"};

        Queue PassengerQueue = new Queue();

        PassengerQueue.Enqueue(passenger1);

        PassengerQueue.Enqueue(passenger2);

        PassengerQueue.Enqueue(passenger3);

        PassengerQueue.Enqueue(passenger4);

        Queue AirportQueue = new Queue();

        AirportQueue.Enqueue(airport1);

        AirportQueue.Enqueue(airport2);

        AirportQueue.Enqueue(airport3);

        AirportQueue.Enqueue(airport4);

        foreach (Passenger p in PassengerQueue)

            {

                foreach (Airport a in AirportQueue)

                {

                    p.PassengerInfo += a.IssueBoardingPass;

                    p.CheckIn(p);

                    p.PassengerInfo -= a.IssueBoardingPass;

                    //PassengerQueue.Dequeue();

                    AirportQueue.Dequeue();

                    break;

                }

​

            }

​

    }

}

​

public delegate void AirTravelEventHandler(object source, AirTravelEventArgs e);

​

public class Airport

{

    private string _GateNum;

    private string _CarrierNum;

    private string _SeatNum;

    public string GateNum

    {

        get{return _GateNum;}

        set{_GateNum = value;}

    }

    public string CarrierNum

    {

        get{return _CarrierNum;}

        set{_CarrierNum = value;}

    }

    public string SeatNum

    {

        get{return _SeatNum;}

        set{_SeatNum = value;}

    }

    public void IssueBoardingPass(object sender, AirTravelEventArgs e)

    {

            Console.WriteLine("Hi {0}, Welcome to Pearson Airport", e.passenger.FullName);

            Console.WriteLine("Your Baggage is OK.");

            Console.WriteLine("Your Boarding pass");

            Console.WriteLine("you are taraveling to {0} with {1} on {2}", e.passenger.Destination, e.passenger.Carrier,e.passenger.TravelDate);

            Console.WriteLine("Your GateNumber is {0}, seat numbers are {1}, your Flight Number is {2}",

                              this._GateNum, this._SeatNum, this._CarrierNum);

            Console.WriteLine();        

    }

​

}

​

public class Passenger

{

    public string FullName{get;set;}

    public string Destination{get;set;}

    public DateTime TravelDate{get;set;}  

    public string Carrier{get;set;}

    public event AirTravelEventHandler PassengerInfo;

    public void CheckIn(Passenger passenger)

    {

        AirTravelEventHandler passengerinfo = PassengerInfo;

        Console.WriteLine("{0} your turn to proceed checkin",passenger.FullName);

        if (passengerinfo != null)

        {

            passengerinfo(this, new AirTravelEventArgs(passenger));

        }

    }

​

}

​

public class AirTravelEventArgs : EventArgs

{

    public Passenger passenger{get;set;}

    public AirTravelEventArgs(Passenger passenger1)

    {

    this.passenger = passenger1;

    }

​

}