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, what can I do for you? ,F: Well, I have some difficulty sleeping. I often wake up at 3:00 o'clock in the morning and no matter how hard I try I just can't fall asleep again.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: As your doctor, I'm so glad that you sleep well every night. (C) M: As a professional shop assistant, I recommend this pillow for you, although you always sleep well. (D) M: Okay, I'm Doctor Lee and I'll give you some pills.

D