S - shop assistant
C - customer
S : Can I help you?
C : Yes. I'm looking for a blouse like this, but in green.
S : What size do you wear?
C : I usually wear size 12.
S : Here's your blouse.
C : Great! I like it! May i try it on?
S : Of course you can. The fitting room is on the left.
C : Thanks.
s : What do you think?
C : I like it. I think I'll take it. How much does it cost?
S : 10 dollars.
C : Here's your money.
S : Thank you, good-bye
Bookseller: - Good afternoon! Can I help you?
Catherine: - Good afternoon! I’m looking for a book.
B.: - What book do you need?
C. – I don’t know exactly. Something for my sister.
B.: - How old is your sister?
C.: - She is 10.
B.: - Harry Porter, maybe?
C.: - Rather not. But I think a comic book would be nice.
B.: - Sure! I have twenty books about Garfield. Would you like to see them?
C.: - That would be very nice. Yes, please. How much is this one?
B.: - This one? It’s 2$.
