A：Good fternoon!
B：Good fternoon!Can I help you?
A:I'd like to borrow a book called from Earth to Moon.Have you lend one?
B:Let me have a look .Ah,hereit is.
A:Thank you.How long may I keep it?
B:Two weeks.You must return it that time.
A:OK.Here is another book,I borrowed it two weeks ago.I have finshed it.I want to give it back to you now .Here you are.
B:ll right.What else can I do for you?
A:Nothing.Thank you very much.
B:You're welcome.