Please answer the following question: M: You're supposed to be more careful. W: I'm on duty today. I'm really sorry. I'll pay for it and try to be more careful in the future. M: There is no need to pay, but be sure you're more careful from now on. W: I will. Sorry again. What was said before this conversation?
A:
W: Sorry, Kevin. I am sorry for breaking your glass. I was tidying up your desk.