Write a dialogue between the librarian and you regarding borrowing a book.

Karim: Good morning, sir.
Librarian: Good morning. How can I help you?
Karim: I need a book, sir.
Librarian: Which book do you need?
Karim: Advanced Learner's by Chowdhury & Hossain.
Librarian: Let me check.
Karim: Is it available sir?
Librarian: Yes, it is available.
Karim: Where is it?
Librarian: It's in the 3rd shelf in the extreme corner.
Karim: Shall I take the book?
Librarian: Yes, you can. Do you have library card?
Karim: Yes, I have.
Librarian: Give it to me.
Karim: Here it is, sir.
Librarian: OK. Please put your signature here.
Karim: Done, sir.
Librarian: Alright. Here is the book.
Librarian: You are welcome.