answer: #Person2# borrows some books about ancient history from the library for the research with #Person1#'s help.
documents: #Person1#: Can I help you?
  #Person2#: Yes, I'm doing some research on Roman civilization. Do you have any books on the subject?
  #Person1#: These books over here are about ancient history. They might be helpful.
  #Person2#: Can I check this one out?
  #Person1#: I'm sorry. It's for reference only, so it must stay in the library. But you're welcome to look through it.
  #Person2#: Ok. And I'd like to check these books out.
  #Person1#: All right. They're due back next Wednesday.
  #Person2#: Thanks for your help.