import java.io.*;

interface FlightDetails {
    void getFlightDetails();
    void book(Ticket ticket);
}

class AirIndia implements FlightDetails {
    public void getFlightDetails() {
        System.out.println("Flight Details of Air India");
    }

    public void book(Ticket ticket) {
        System.out.println("Ticket booked in Air India");
    }
}

class Emirates implements FlightDetails {
    public void getFlightDetails() {
        System.out.println("Flight Details of Emirates");
    }

    public void book(Ticket ticket) {
        System.out.println("Ticket booked in Emirates");
    }
}

class Lufthansa implements FlightDetails {
    public void getFlightDetails() {
        System.out.println("Flight Details of Lufthansa");
    }

    public void book(Ticket ticket) {
        System.out.println("Ticket booked in Lufthansa");
    }
}

class Ticket{

}

public class InterfaceFlight {
    public static void main(String[] args) throws IOException {
        FlightDetails flight = null;
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("1.Air Indian2.Emiratesn3.Lufthansa");
        System.out.print("Enter choice = ");
        int choice = Integer.parseInt(br.readLine());
        if(choice == 1){
            flight = new AirIndia();
            flight.book(new Ticket());
        } else if(choice == 2){
            flight = new Emirates();
            flight.book(new Ticket());
        } else if(choice == 3){
            flight = new Lufthansa();
            flight.book(new Ticket());
        }
    }
}