Professor Yamakawa is asking Miss Anderson to take a book to Bernard for him

Y:       Are you going to see Bernard soon?
A:       Since our study group is going to meet the day after tomorrow, I'll probably see him them.
Y:       Well then, would you please give this book to him?
A:        Certainly, But what should I do if he doesn't come?
Y:        There's no hurry, so it'll be all right to give it to him the next time you see him.
A:        Oh, I see. I'll be glad to help. I don't know whether or not I'll see him this week, but I'm sure
            I will next week.
Y:        Thank you. I appreciate it.
A:         Is this the book Bernard said he wanted to read the other day?
Y:         Yes, it is. It's an interesting book.
A:         When Bernard finishes, may I borrow it from you, too?
Y:          Of course you may.