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: M: Hello. ,F: Good morning, sir. Welcome to London Heathrow Airport. Where are you going? ,M: I'm going to Taipei by way of Hong Kong. ,F: Your passport and ticket, please. Will you be checking in any banks, Mr. Lewis? ,M: Just one and I have this carry-on bag.
(A) F: Since you have no luggage to check in, you can go for security check. (B) F: I'm sorry. You'll have to pay extra money for the second piece of luggage. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: Put this piece of luggage on the belt, please. I need to look at its weight.

D