Hi. What is the most important package for you? Mine is Firewood.
Hey!  Excited for this camping trip.  For me I care the most about Water since I have a whole family with me and we didn't pack enough water
I see. How about I give you the most package of water and you could give me the most for firewood? Then we could compromise and split the food evenly.
That sounds pretty good to me from the get go.  I'd even be willing to do all 3 water packages for myself and all 3 firewood packages for you
Sounds fair to me, too. Although it looks like we can't evenly do a food swap. I'd be okay with giving you 2 packages and keeping one. That okay with you?
Absolutely, thanks for being so understanding.  Two food packets can help feed my hungry family here 🙂
Great! I'm in agreement, too. So I'll send over 3 waters. I'll keep all the firewood and send 2 food packages.
Perfect.  that sounds absolutely good to me.
OK. I'm going to get the numbers to match what I said.
Yup, this should do it