Conversation in book shop - Improve spoken English

The following is a conversation between a young student
wanting to become a writer and a bookseller.

(Rohit visits a book fair. He has heard that many eminent
writers are visiting the fair to read excerpts from their books. He
wants to meet them. He approaches a bookseller. )

Rohit : Excuse me, Sir. Good evening.
Bookseller : Good evening. What can I do for you?
Rohit : Will any eminent writer visit your stall today?
Bookseller : Yes. Sushmita, who writes science fiction for
children is visiting us at 6.00 this evening.
Rohit : Can I meet her? I want to become a writer one day.
1 would like to talk to her and get some tips.
Bookseller : Sure. It’s 5 p.m. now. You can go around the book
fair and come back at 6 p.m. or stay here till she
comes.
Rohit : I am excited. I’d prefer to stay here and browse
through some books.
(After some time)
Bookseller : Why don’t you buy this book, “Tips for Writers”?
Rohit : I already have one.
Bookseller : What about this book? “How to become a Good
writer?”
Rohit : All right. I’ll take it. How much does it cost?
Bookseller : 60 Rupees. As you’re a student you’ll get 20%
discount.
Rohit : Thank you!
Bookseller : You’re welcome