Task: Dialogue State Tracking
Input (English): Seller: Hello are you interested in the phone?
Buyer: Hi there. Yes I am. Can you tell me if its used or new?
Seller: It's used and the screen is cracked. I'm selling for only $60.
Buyer: If its cracked then can you accept $30 for it? 
Seller: It's in good working condition. I would need to get at least $45.
Buyer: what's the color of the phone since I don't see any image?
Seller: It's black.
Buyer: is the crack very visible?
Seller: It's visible, but you could still use it. You only notice it when it's off.
Buyer: okay then what else can you throw in with $45?
Seller: I have the charge cable and a rubber case.
Buyer: Okay then we've got a deal at 45
Seller: great.
Seller: 
Buyer: 

Output (English): accepted