private void ProceedAsPerTheChoice(Customer customer, AdminClass admin, IRestro restro, int choice)
        {
            int ans;

            switch (choice)
            {
            case 1:
                restro.ShowTables();
                break;

            case 2:
                restro.ShowItems();
                break;

            case 3:
                restro.PlaceOrder(admin, customer);
                break;

            case 4:
                Environment.Exit(0);
                break;

            default:
                Console.WriteLine("Invalid Option");
                break;
            }
askAgain:
            Console.WriteLine("Do you want to continue:\n1. Yes\n2. No");
            ans = Convert.ToInt16(Console.ReadLine());
            if (ans == 1)
            {
                Program.Start(admin);
            }
            else if (ans == 2)
            {
                Environment.Exit(0);
            }
            else
            {
                Console.WriteLine("Invalid Option");
                goto askAgain;
            }
        }