Participant mturk_agent_1's preferences:
value2issue: Low: Firewood
Medium: Water
High: Food
value2reason: Low: We are fire experts, we don't need extra wood.
Medium: We will need to wash al the dishes we make a mess with. 
High: We love to eat around the campfire. 

Participant mturk_agent_2's preferences:
value2issue: Low: Water
Medium: Firewood
High: Food
value2reason: Low: I'm camped out near a river where I could get more water if needed.
Medium: I brought some firewood, but the weather forecast now says it could get really cold the next few days.
High: I just noticed that some of my food is past the expiration date.

Negotiation dialogue:
mturk_agent_2: Hello, I'm in need of some extra food for my trip.  I just checked and some of my food is past the expiration date.

mturk_agent_1: Hi friend! How are you. Food is a non negotiable for me. We currently don't have enough for our trip.

mturk_agent_2: Everything is negotiable 🙂 but if you absolutely can't budge on the food then I will need some extra firewood and water to make up for it.

mturk_agent_1: We cannot budge at all on food. But are more then happy to give up all the extra fire wood for all the food. 

mturk_agent_2: Could you trade one food item for either one firewood or water?

mturk_agent_1: How about this- You will get 1 food, 1 water and 3 Firewood. I will get 2 Food and 2 Water with 0 Firewood. 

mturk_agent_2: Hmm, I think I would prefer your original offer instead.  You can have all the food if I can have all the rest.

mturk_agent_1: Hmmm i don't beleive i ever offered you everything for all the food. I will need at least one water. lets not be selfish.

mturk_agent_2: Oh you are right sorry, I was mistaken.  Okay then, how about I get 1 food, 2 waters, and 3 firewood.  You can have 2 food and 1 water?

mturk_agent_1: Well that would give you 6 rations and me 3. Again that is not very fair. If you want 1 food and all the fire wood that i need at least 2 waters. so again, 1 food, 1 water 3 wood for you

mturk_agent_2: Okay, you have a deal. 🙂

mturk_agent_1: Submit-Deal

mturk_agent_2: Accept-Deal