Task: Dialogue State Tracking
Input (English): Buyer: Hi there. Is this available?
Seller: yes
Buyer: Is this used?
Seller: Yes but it is in great shape
Buyer: any scratches or rims?
Seller: Nope. Like brand new.
Buyer: okay good. The price is high for me can you accept 535 for it?
Seller: It still has the service and warranty on it. I can go down to 575.
Buyer: okay since its what I have been looking for months, I will take it. I haven't been able to get this for so long. Can you please ship it to me?
Seller: Sure but depending on the cost I might have to add more to the price.
Buyer: That's not a problem. Great then we've got the deal?
Seller: Deal
Seller: 
Buyer: 

Output (English): accepted