如何写下列英语情景对话

Ms. Yang: Good afternoon, professor.
Mr. Liu: Good afternoon, Yang.
Yang: Professor, may I ask you something about my english course?
Liu: Sure, I am free now. I am very glad for discussing your studying with you.
Yang: It's very kind of you, and I just wonder when we will take the middle exam of this term?
Liu: Eh...I think it should be 3 weeks later, but I can't decide the exact date yet.
Yang: Oh, thanks, it seems I must study harder from now on.
Liu: Perhaps it is. But don't be too nervous with that, it's just a ordinary exam and you are always very good, trust me.
Yang: Thanks for your praise, I believe I will do it well with your encouragement. Thanks a lot.
Liu: You are always welcome, lady.