Task: Dialogue Generation
Input (English): M: Hi, what can I do for you? ,F: I'd like to send this package to France. Can it be delivered in the next 5 days? ,M: Yes, we offer an overnight service. It'll cost $70. ,F: Ah, that's a bit expensive. Do you have a 3 days service? ,M: No, but we can get your package to France in one week for $40. ,F: Well, that sounds good. I'll take that. Is the service guaranteed?
(A) M: Yes, of course, and please check your information, you package will reach France in one week. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Sure it is, please check again, you ordered a 3 days service and it costs $100. (D) M: Sure it is, let me check your information, and you package will reach France in one week which costs $150.
Output (English): A