Hi there.  I'm really looking forward to this camping trip!  Hope we can make a deal over these extra supplies.  🙂  I was hoping to do some hiking and swimming away from my campsite, so having some extra fresh water would be really helpful to me.
Hello there.  I too am looking forward to this trip.  Definitely need to decompress. 
Sounds like it'll be great for both of us.  Is there anything extra you need?
My favorite thing to do around the campfire is to sing songs.  I also like to do extra hiking as well.  I especially need firewood. 
Well, I could see fit to give you the extra firewood (If I can hear a few of your songs!) if you don't mind letting me take the water.
Hahaha, once you hear my singing you might hope the opposite.  I can do that with the firewood and water, but I really would prefer two of the remaining foods. 
I could also use the extra food, so can we resolve it amicably?  Coin flip maybe?
That's a good idea.  I'll trust you to do the coin flip.  
Sure.  🙂  I'll grab a coin.
Calling tails.  
Looks like 2 to you!  So it's 3 water and 1 food to me then, 3 firewood and 2 food to you?
I appreciate your honesty!  Sounds good to me.