Task: Dialogue State Tracking
Input (English): Buyer: hello
Seller: Hello. Are you interested in our services?
Buyer: Yes I am
Seller: Ok. We charge $50 for unlocking and flashing phone devices. 
Buyer: That much. Are you willing to discount the price for first time customers
Seller: For first time customers we offer a price of $45 for the service.
Buyer: That's still pretty steep..Hmm what about 35.00? 
Seller: Sorry, I can not go that low. The best I could do is $45 and have the device back to you within 30 minutes.
Seller: 
Buyer: What other services do I get with 45.00?
Seller: There are no other services? We unlock and flash phones to remove them from the network--that's what we do.
Buyer: If you are flashing my phone I still have to pay for first month service. You are not losing anything with 35.00. I still have to pay for first month service.
Seller: I can make you a final offer of $45 to which you can accept or reject. Sorry, our prices are firm. 
Buyer: Do I get a free phone case with it? What about 40.00?
Seller: I do not see us reaching an agreement here. 
Seller: 

Output (English): rejected