public void CompleteTransaction()
{
Console.WriteLine();
string[] receipts = catering.Receipt();
foreach (string receipt in receipts)
{
Console.WriteLine(receipt);
}
Console.WriteLine($"Total: {catering.TotalPurchase()}");
Console.WriteLine();
Console.WriteLine("Your change today is $" + catering.AccountBalance);
Console.WriteLine(change.GiveChange(catering));
}