C - customer
SA - shop assistant
C: Good morning.
SA: Good morning. Can I help you?
C: Yes please. How much is this dress?
SA: It's £100.
C: Oh, that's too expensive. Do you have any cheaper ones?
SA: No, unfortunately not. However, I can offer you a discount of 20% on this one.
C: Really? That would be great!
SA: What color do you prefer?
C: I'd like a red one.
SA: Here you go.
C: Do you have a fitting room here?
SA: No, we don't. You can, however, return the product if it doesn't fit you.
C: That's great. How much do I pay?
SA: £80 please. Will you pay by card?
C: No, I'll pay in cash. Here you go.
SA: Thank you. Here is your change.
C: Thank you. Goodbye!