Definition: In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.
Input: F: Excuse me? I think you are in my seat. Look, it says 9B on my boarding card. ,M: Sorry, but could we exchange seats? This is my old friend. We haven't seen each other for a long time. I really want to sit next to him.
(A) F: Of course. Although 8B is my seat, you can sit here if you want to sit next a window. (B) F: No problem. You can exchange seat, if you would like to sit next to your new friend. (C) F: Okay. Let's exchange seat, so that you can sit next to your old friend. Have a good time. (D) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please?

C