The weather is going to be really hot. Could I have 2 water in exchange for you receiving 2 food and 2 firewood?
I have a low immune system and need to stay warm how about I get all 3 firewood in exchange for the 2 water. 
I will agree to 3 firewood for 2 water. Maybe I should extra food though so 2 food for me🙂
I can agree to 2 food. You get 2 and I will get 1 food. That sounds fair to me. 🙂
Great, this is going to be a fun trip. So I get 2 water, 2 food and you get 1 water, 1 food and 3 firewood?
Yes, I cant wait to set off. It sounds like you have it all correct. I hope we both have a great trip. 
I hope it doesn't get cold out since I won't have any firewood. You need it more than I do though, so you should have it all.
Thank you. I hope I don't run out of water. I get dehydrated easily but I want us both to be comfortable. 
I really appreciate you helping me out and i hope you have some help carrying all of that firewood.
I appreciate your help as well. Enjoy your extra food and water on your trip. I hope you can stay warm.