Studend (S1) and Seller (S2)S1: Hello. Can I have that book please?S2: Hello. I'm sorry, which book do you need?S1: That, that!S2: I'm sorry again, but can you name the book please?S1: Hmm.. Pushkin, "Cloud".S2: Oh, that's right. Here you are!S1: Thank you, bye.S2: Good bye!