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: I need to book a flight online. Can you help me? ,F: Sure. I use a website called Kayak.com. That compares the prices of many different airlines. They also have a cool quality where you can look at flights a few days before and a few days after your scheduled dates to find the best price.
(A) M: Thank you. I will compare different airlines at this travel agency. (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: I am glad that you think it is useful to look at flights at flexible dates. (D) M: Sure. The travel agency will choose nonstop flights for me.

C