instruction:
Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
question:
THEM: i would like 1 of each YOU: i have to have hat. THEM: ok.
answer:
Yes

question:
THEM: i only need the book - the rest can be yours YOU: deal THEM: sounds good - thank you.
answer:
Yes

question:
THEM: i would love to have a hat and the books. YOU: and i'd take one hat and the balls? THEM: we split the hats and i get all the books how does that sound to you. YOU: deal!
answer:
No