Hi, are you excited for the camping trip?
Hello! I am very excited!🙂 How about you?
Yes!  Would you mind sharing your highest priority item with me?  My most valued item right now is Food actually
I am willing to share everything.
Awesome.  I would prefer getting 3 of my highest priority item though, and maybe you could get 3 of your highest priority item?
I  wood really like the firewood as I am afraid of the dark and would like my fire to last all night. 
Oh that makes total sense.  I need the food so badly since I am bringing my family with me and they are one hungry bunch aha.  Would you be amenable to me having 3 food packets and you having 3 firewood packets?
That would work great. How about water? What is your preference for that?
Aha well I guess clearly my preference would be getting 2 water packages and you getting 1?  I know we can't split exactly evenly, but this way we each get our top priorities at least
I would be good with that. We both would get what we really want. And I am okay with getting less water.