Task: Dialogue State Tracking
Input (English): Buyer: Hello, I was wondering if the iphone 6 was still available? 
Seller: Hi! Yes, it is. It is in very good condition and has always been in a case, so I'm letting it go for $320.
Buyer: That is not a bad price for a phone like this. Is it unlocked? Any dents, scratches or dings? and why is the picture only showing the back of the phone?
Seller: I just didn't take a picture of the other side for some reason, but it is in excellent condition as it had always had the case and screen protector. It is not unlocked.
Buyer: Awesome. I like the color as well. I see you are asking $320 but would you be willing to go as low as $288? I am really on a tight budget at this time. 
Seller: I could do $295 and throw in the case and screen protector.
Buyer: Oh with case and screen protector? That's a great deal. Sold! Just let me know where I can pick it up and I'll be out as soon as possible. 
Buyer: 
Seller: 

Output (English): accepted