hello?
Hi! How are you today
i'm pretty good, how are you?
Great!  I was wondering if you would mind sharing your top preferences on our three items?  What do you feel is your highest priority supply?
I suppose my highest priority is water, what do you think about maybe trying to split these up in an even way as possible?
Sounds great to me.  Excited for this camping trip.  My highest priority right now is food; I am bringing along a huge family and need to feed all of them, and they'll get super hungry without more packets!
Ok that sounds good. So, I suppose that we can agree that we'll both receive at least 1 of each of the three different items.
Sure.  how about I could get 2 food packages since that is my highest priority, and you could get 2 water packages?
That sounds reasonable to me.
Awesome.  And actually I would either be willing to have 1 water package and 2 firewood packages.  Would that be okay by you?
In that scenario, you'd be getting 1 extra item than me, but I'm not too worried about it because I'm sure if I needed to get extra firewood, I could find some in the wilderness.