A: I need help preparing for my presentation on Friday.

我需要帮助准备星期五的演讲。

B: I could help you with that.

我能帮你。

A: Are you sure you have the time?

你确定你有时间吗？

B: I promise you  that I have the time to do this. If I didn't, I wouldn't offer to help. 

我向你保证我有时间。如果没有时间，我不会主动提出帮忙的。

A: What would be the best time for you to help me?

什么时间帮我最合适？

B: Tomorrow night would work for me. 

明天晚上合适。

A: Shall we just meet here?

我们可以就在这里见吗？

B: OK, and I'll bring some information that helped me with my presentation.

好的。我会带一些帮助我做过演讲的信息。

A: I'll see you then.

到时候见。

B: See you tomorrow night. 

明天晚上见。