购物英语口语退货 Returning A Product

SALESPERSON: May I help you? 
SARAH: Yes, I would like to return these slacks.
SALESPERSON: Alright. Do you have your receipt?
SARAH: Yes. Here it is. I bought them last week.
SALESPERSON: And why are you returning them?
SARAH: I bought them to go with a blouse of mine. But they don't really match.
SALESPERSON: I see. Oh, wait. Ma'am, I'm sorry. These slacks were on sale.
SARAH: Yes, they were thirty percent off.
SALESPERSON: I'm sorry, but we don't allow returns on sale items.
SARAH: I know many stores have that policy. But I have returned sale items here before.
SALESPERSON: I'm sorry, but we usually don't do it. It is our policy.
SARAH: I just bought these slacks a week ago. And I am a regular customer here.
Can you make an exception this time?
SALESPERSON: Well. Let me talk to the manager for a moment.
Ma'am, the manager says I can do it this time.
SARAH: Good. I'm a regular customer here. I am glad you can make an exception for me.
SALESPERSON: Please show me your receipt again.
SARAH: Here it is.
SALESPERSON: I will have to give you store credit, Ma'am.
If you find something else you like in the store, you can use the credit.
SARAH: Store credit is okay with me.
I'm sure I will find something I like. I shop here a lot.
SALESPERSON: We appreciate your business, Ma'am.