Task: Dialogue Generation
Input (English): F: Excuse me. Do you mind if I use your pen? ,M: Of course not. It's on the bookshelf. Help yourself.
(A) F: No, I don't need you to buy me a new one. I just need your old CD. (B) F: Thank you, I'll return the book to you as soon as I can. (C) F: Yes, I know you are reading a book. I came to borrow your CD. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?
Output (English): D