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.

[EX Q]: Context: 'Why do you need so much firewood?🙂' 'My camping expedition is in the far reaches of the north, away from civilization. I've already lost three fingers to frostbite, and I can ill afford to lose another. In short, I need the firewood - for fire. And warmth.' 'Sorry to hear about your problems. Are you going to Canada this time?'
Utterance: 'Farther. I'm going so far north that we'll be passing over the north pole and keep going into Siberia.'
[EX A]: No

[EX Q]: Context: 'yeah, i understand that. we are all apart of a weigh watchers group ao we' '😮 Been there and done that.  It's great when you can start to see the change in their self esteem!' 'yes, for sure starting to see results, id be more than happy if i could get two or three waters and at least one or two firewood '
Utterance: 'I can definitely oblige on the water as we are lucky enough to have a spot that is just by the lake.  Makes for a cold night, but all the fresh water and fish you can handle!'
[EX A]: Yes

[EX Q]: Context: 'Ah, that doesn't work for me. I would need to have at least one water because one of mine has a leak (and I have an extra person joining me).' 'I guess you can have one. That gives me 2 firewood and 2 waters, and you 1 firewood, 1 water, and 3 food. Right?' 'Yes that would work for me. But I would also let you have all the firewood if I got 2 waters and all the food. '
Utterance: 'You didn't give me any of the food☹️'
[EX A]:
No