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: 'Hey!  I hope you're having a good week and staying well.  So we are negotiating on supplies! 🙂' 'Yes. Hoping we can make a good deal.' 'Me too!  I'm hoping for two food items and one water.  I'm diabetic so if my blood sugar drops, I may need the extra carbs.  And water because water is important! 🙂 '
Utterance: 'I prefer two water and one food. I can understand why you need the extra food items. I'm not much of a snacker but do drink a lot of water all the time. Keeps me from eating more!🙂'

SOLUTION: Yes

PROBLEM: Context: 
Utterance: 'Can you spare some water? I need to take medication and I have run out.'

SOLUTION: No

PROBLEM: Context: 'That is great.  Looks like we are on our way to making a deal.  How do you feel about wood?  ' 'I would prefer less wood so that's great' 'I do not like camping and find comfort in food, so I would like to take all the extra food that I can.  '
Utterance: 'I think that can be negoiated then i tend to eat less on camping trips'

SOLUTION:
Yes

