A: Excuse me. Can you help me? B: Certainly. What can I do for you? A: May I exchanged an opened DVD? B: Certainly, as long as you have your receipt. A: Here you are. B: I'm sorry, but you're only allowed to return items within 30 days. A: Is there any way I can exchange it? B: I'm afraid not. A: I am not coming here anymore. B: I'm sorry, but please don't blame me.
