TASK DEFINITION: The input is taken from a negotiation between two participants who take the role of campsite neighbors and negotiate for Food, Water, and Firewood packages, based on their individual preferences and requirements. Given an utterance and recent dialogue context containing past 3 utterances (wherever available), output Yes if the utterance contains the no-need strategy, otherwise output No. no-need is a cooperative negotiation strategy. It is used when a participant points out that they do not need an item based on personal context such as suggesting that they have ample water to spare. no-need can directly benefit the opponent since it implies that the item is up for grabs.
PROBLEM: Context: 'Hello. I really just need firewood for my wife and daughter and some extra water for myself.' 'Hello, i also need firewood, i have a medical condition where it is very hard to maintain my body temperature. ' 'My wife is in the same boat. That sucks. I wonder if it will be cold.'
Utterance: 'Well i do not need the water at all as i have a distiller'

SOLUTION: Yes

PROBLEM: Context: 'Hi.  I can't do that right now.' 'Is there anything that you might need? ' 'I would be interested in firewood.  Can I ask you, what are your primary concerns on this trip?'
Utterance: 'My primary concerns are staying hydrated, I have been feeling sick and throwing up from being so high up in the mountains. '

SOLUTION: No

PROBLEM: Context: 'Are you willing to take 1 firewood and 2 waters?  I also don't need the food.' 'yeah for sure.  sounds liek a godo trade to me honestly' 'Great!  Sounds like a deal.  Enjoy your camping trip!'
Utterance: 'you too thanks'

SOLUTION:
No