/// <summary>
        /// Defines the entry point of the application.
        /// </summary>
        /// <param name="args">The arguments.</param>
        static void Main(string[] args)
        {
            Console.WriteLine("Hello Welcome to Hotel Reservation System\n");
            HotelReservation.DefiningAdditionRepository(CustomerType.REGULAR);
            HotelReservation.DefiningAdditionRepository(CustomerType.REWARD);
            HotelReservation.DisplayRecordsInDictionary();
            Console.WriteLine("Have you upgraded from the regular customer then enter yes.");
            string choice = Console.ReadLine().ToLower();

            if (choice == "yes")
            {
                FunctionForCustomerType(2);
            }
            else
            {
                FunctionForCustomerType(1);
            }
            Console.ReadKey();
        }