Hello how may I help you? I'd like to order something. What would you like to order? I'd like to order this book please. Which book? It's called "How to learn Klingon". I don't have a book by that title but I do have "how to Learn Klingon in 7 Days" Okay, order that. Sure, that will be $59 Okay, here is a coupon. Coupon code plese 12345 I'm sorry but that coupon is for "How To Learn Klingon", so it does not apply Okay, cancel the order then. Order cancelled. Thanks.