English Conversation Practice - Getting a Discount

Customer: I'm interested in this sofa.
Sales clerk: That's the last one we have.
Customer: This one has a small tear in it. Can you give me a discount?
Sales clerk: I can give you 30% off the price.
Customer: I'll take it!

1. What is the customer interested in?
Armchair
Sofa
Dining table
Nightstand

2. What is wrong with it?
It has a tear
It has a stain
It's the wrong color
It's too heavy

3. What does the customer ask for?
Refund
Replacement
Different color
Discount