input question: M: I promised Bill I'd go swimming with him. What was said before this conversation????
output answer: W: Jack, are you going to play tennis with us today?

input question: W: Sure. The next direct flight to Los Angeles is two hours from now, but if you do not mind transferring at San Francisco you can board now. What was said before this conversation????
output answer: M: Excuse me, would you please tell me when the next flight to Los Angeles is?

input question: M: Yes. the room is fine. W: Are you checking out this morning? M: Yes. I'm leaving around 10:00. What was said before this conversation????
output answer: W: Good morning. did you sleep well last night?

input question: W: You always said you didn't think English was of great importance. M: I realize I was wrong and it's too late. W: It's never too late to learn. What was said before this conversation????
output answer:
M: I wish I had learned English well when I was in high school.