Task: Dialogue State Tracking
Input (English): Buyer: Hi! I am interested in your bike
Seller: Very good. It is still available and in very good condition.
Buyer: Looks like it! However, I saw a Facebook post from the local police department about a stolen bike that looks exactly like this one. I'll take the bike for $2,000 and I'll promise not to report you to the police.
Seller: You are too funny. Yes a very similar bike was stolen, but that is not this one. That was my wife's bike. 
Buyer: That sounds like something a criminal would say. I don't think we will be making an offer today.
Buyer: 

Output (English): rejected