I really need a lot of firewood. Can I take all the firewood?
I definitely want to take at least 1 firewood, since it's going to be so cold. What do you need all of it for?
I am allergic to cold and it is freezing out here. 
I understand. Then can I take all of the food? I will have 2 children with me, and we will be doing a lot of activity, so I can't have anyone starving.
That is fine. then we can share the water. I take 2 you take 1
Since you get all of the firewood, I'd like 2 water, and you can take 1. I think that's more fair. Do you agree?
I feel that is fair enough.
Wonderful. I appreciate the compromise and I look forward to making the trade.
Me too. Thanks for helping me out and being understanding
Of course. I hope you have a great trip. Feel free to enter the trade, and I'll happily accept it.