I'll give you three food for three water and three firewood. 
I don't need any more food, my family has alot of food intolerances. But I am willing to trade 3 food for 3 firewood.
☹️ I mainly need water. I drink way more than most people. Any other suggestions?
I hear you on that. I need alot of firewood 😮How about 3 waters for 3 firewood? I'm guessing neither of us need food 
Yes, food is a low priority for me. How about I give you three firewood for three water and three food?
That doesn't sound like a fair trade to me.
Perhaps we can reach an agreement with further negotiating.
I need some water for my dog, he's big and overheats easily. I'll trade you 2 waters and 2 food for 3 firewood 1 water
I don't like the sound of that. Sorry. 
☹️ how could we make that better You're moving kinda shady and I really don't like that, I'm running out of time for this HIT anyway, my final offer is gonna be 3 firewood + 1 food for 3 waters