Hi! Are you ready for the camping trip?
Hello! I'm excited for the trip but I'm still missing a few items.
What is it that you need?
Food mostly, I'm willing to give up 2 waters in exchange for more food.
I really need food also. But I'm sure we can work something out. What about I take 1 food, 2 water and all firewood?
That's a good deal, but I need a little bit  more firewood. What if I give you 1 food, all the water, and 2 firewood?
That will work for me. 
That sounds great!! 🙂 🙂
I'm glad we could come up with something that works for both of us 
Me, I feel like this is a very fair deal and I hope we have fun on our camping trips.