public void RunInterface()
        {
            bool done = false;

            while (!done)
            {
                Console.WriteLine("(1) Display Catering Items");
                Console.WriteLine("(2) Order");
                Console.WriteLine("(3) Quit");
                int input = 0;
                try
                {
                    input = int.Parse(Console.ReadLine());
                }
                catch (FormatException ex)
                {
                    Console.WriteLine("Please enter in a valid integer for selection.");
                    continue;
                }


                switch (input)
                {
                case 1:
                    DisplayCateringItems();
                    break;

                case 2:
                    OrderMenu();
                    break;

                case 3:
                    done = true;
                    FileAccess.GenerateSalesReport();
                    continue;

                default:
                    Console.WriteLine("Please enter a valid response.");
                    continue;
                }
            }
            return;
        }