A: Can I help you? B: Yes. How much is that shirt? A: It's $25.99 originally, but it's on sale this week, so the price will only be $19.99. B: Nice. Can I try it on? A: Sure. What is your size? B: I don't know. A: Ok, try a size 12. Let me know if you need to exchange it for another size. B: Thank you. B: Do you have it in a smaller size? A: Yes, I do. Here you are. B: Thank you. I will take this one.