Task: Dialogue Generation
Input (English): F: Did you go to Yellowstone Park for vacation last year? ,M: I couldn't make it last December, but I finally went there 3 months later. I plan to visit again next year.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: Why did you visit Yellowstone Park in December this year? (C) F: Why did you visit Yellowstone Park last year? (D) F: Why did you visit Yellowstone Park the year before last?
Output (English): A