1. May I help you?
2. I would like a pair of navy blue socks.
3. I'm not sure that we have your size in stock.
4. I wear a ten sock.
5. Let me look.
6. I'll take a white pair, if you don't have navy blue.
7. No, I'm sorry. We are out of both colors. I have a
    yellow pair left.
8. No, thanks. I'll have to come back.
9. Anything else?
10. Yes, I would like to look at a handbag.
11. Handbags are on the third floor.