[speaker001:] I'm not satisfied with it.
[speaker002:] Why not? What's wrong with it?
[speaker001:] Sometimes it goes fast. And sometimes it goes slow. And the alarm doesn'twork, either.
[speaker002:] Would you like another one?
[speaker001:] No. Can I have my money back?
[speaker002:] Hmm... have you got a receipt?
[speaker001:] A receipt?
[speaker002:] Yes. I must see your receipt. You can't have your money back without receipt.
[speaker001:] Oh, I'm not certain, but I think I've lost it.