Task: Dialogue State Tracking
Input (English): Seller: Hello, Are you interested in buying my car?
Buyer: I believe I am. The first moment I seen the ad I feel in love with the Chevrolet. Can you tell me a little more about it. Has the engine been serviced anytime since 1959 and what's the milage? 
Seller: The engine is in great condition. It has 150,000 miles, but it's vintage. There's absolutely no rust since it was kept in a garage.
Buyer: Yes, it seems in perfect shape for a barn find! I see that you are asking $15,000 for the truck. But at the moment I am on a tight budget. Would you be willing to take $10,500 for it? I would love to fix it up for my car shows.
Seller: It's in excellent condition. I'd take $12,000 for it.
Buyer: Well, that seems fair for a great antique. Sold! Let me know where to go and I'll send out a tow truck to pick it up. 
Buyer: 
Seller: 

Output (English): accepted