using System;

​

namespace flying

{

    public class Program

    {

        public static void Main(string[] args)

        {

            int opt;

​

            Console.WriteLine("1.Fly to Jeddah at 13:30");

            Console.WriteLine("2.Fly to Dammam at 8:50");

            Console.WriteLine("3.Fly to Abha at 20:45");

            Console.WriteLine(".Arrive in Jeddah at 18:55");

            Console.WriteLine(".Arrive in AlUla at 9:35");

            Console.WriteLine(".Arrive in Madinah at 12:25");

            Console.WriteLine();

​

Console.Write("Enter your option (1-3): ");

            opt = int.Parse(Console.ReadLine());

​

            string[] flights = {

                "Fly to Jeddah at 13:30",

                "Fly to Dammam at 8:50",

                "Fly to Abha at 20:45",

                "Arrive in Jeddah at 18:55",

                "Arrive in AlUla at 9:35",

                "Arrive in Madinah at 12:25"

            };

​

            foreach (var flight in flights)

            {

                Console.WriteLine(flight);

            }

            Business business = new Business();

            business.CheckMembership();

                      }

    }

​

    public class FlyKAU

    {

        public int Age { get; set; }

        public string Name { get; set; }

        private string IdNumber;

    }

​

    public class Business : FlyKAU

    {

        public bool Membership { get; set; }

        public string MembershipNumber { get; set; }

​

        public void CheckMembership()

        {

            Console.WriteLine("Do you have a membership? (yes/no)");

            if (Console.ReadLine().Equals("yes", StringComparison.OrdinalIgnoreCase))

            {

                Console.WriteLine("Please enter your membership number:");

                MembershipNumber = Console.ReadLine();

                Membership = true;

                Console.WriteLine("Membership verified.");

            }

            else

            {

                Membership = false;

                Console.WriteLine("No membership provided.");

            }

        }

    }

​

    public class Economy : FlyKAU

    {

    }

}

​