Task: Dialogue Generation
Input (English): M: Hello, Tom Smith. ,F: Hello, Tom, it's Mary Clark. My secretary said you called just now? ,M: Yes. Thank you for calling back. I wanted to make sure you've received the invitation. ,F: Yes, I have. I'd be glad to accept it. ,M: Good. Uh, Mary, some friends of mine are going to say it Glencross for a few days after the celebration. Would you join us for 4 or 5 days? ,F: Oh, I'd love to. But I'm afraid I can't. I've already planned to go to Brussels on the eighteenth. ,M: Well, would you like to stay until the seventeenth? I'm sure you need a break from your busy work. You worked too much.
(A) F: I've already planned to go to Glencross on the eighteenth, so seventeenth is OK. (B) F: I will hold a celebration on 18th. (C) F: I've already planned to go to Brussels on the 20th. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
Output (English): D