Hello there!  How are you doing?
Hello. I am doing great. Excited for my camping trip. How are you?
Oh I hear you!  I'm super excited too!  Just kind of getting some last minute packing done! 
I hope it will be a good time.
Me too!  Well I'll just start by saying I am placing firewood very high on my priority list.  We will be doing a lot of fishing so I feel like I may need some extra firewood for all the cooking I will be doing.
Great. I'm bringing water and I may need more in order to keep myself hydrated at all times. I'm a big guy.
Ok that is a good idea!  Hydration is important!  I think we will have plenty to drink so I have water at the bottom of my priority.
How about we strike a deal? I could use some more water packages.
Ok what are you thinking?
Food is pretty low on my priority list. I'm willing to give up some of that.
Ok so how about you take all 3 water packages and I take all 3 firewood and I'll give you 2 food to my 1.  Or would you rather each take some of everything?