Given the task definition and input, reply with output. Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.

THEM: what would you like YOU: the hat and the ball THEM: i will take the ball and 3 books YOU: if i give you the ball i will need 3 books. THEM: do i get the hat? YOU: no THEM: that doesnt work i would end up negative,. i will do the ball and 2 books YOU: fair enough THEM: deal.
Yes