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