Task: Dialogue State Tracking
Input (English): Seller: Hello, I received your e-mail regarding your interest in my '02' Mercedes c240. any questions?
Buyer: Hello, yes I have a few questions. What is the mileage on this car and how long have you owned it?
Seller: I am the first owner of this car, bought it right off the lot. It has only 80k miles and the new michilin tires have seen only 3k miles.I am asking only $4500 for her. 
Buyer: That all sounds pretty good. If I came by tonight would I be able to take it for a test drive? And you would consider taking $4 for it if I paid cash?
Seller: The test drive is okay, the engine purrs like a kitten. I was looking for serious offers only. BUT, I am willing to let her go for $4250. 
Buyer: Do you have a cover for it?
Seller: I sure do and that comes with the vehicle. Not a scratch of ding on it. 
Buyer: Alright I think I can do $4250 if everything checks out
Buyer: 
Seller: Come on by for that test drive. I'll e-mail you my address. 
Seller: 

Output (English): accepted