Participant mturk_agent_1's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: Water is essential, but I am rarely thirsty.
Medium: Need food to stay alive. I love food.
High: It gets really cold during the night. I need more firewood to keep to warm.

Participant mturk_agent_2's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: I have other drinks I brought along and should have enough water to get by. 
Medium: I get hungry a lot!
High: I might get cold or wet and also need something to cook my food.

Negotiation dialogue:
mturk_agent_1: Hey buddy. How's your day going? 🙂

mturk_agent_2: Oh it's going pretty good. Just having a relaxing cigar! 🙂

mturk_agent_1: Oh nice. It's over 100 degrees here, great for a campfire. How's the weather for you? 🙂

mturk_agent_2: 100? Good God, it's only 60 here. So, let's get down to the haggling I suppose haha. What do you crave the most on your trip? Since it's 60, firewood's my biggie

mturk_agent_1: Oh lord. Houston we have a problem. 🙂

mturk_agent_2: I take it we're both craving the firewood, huh? hehe Well, how about food and water? I like those both too, probably more than firewood.

mturk_agent_1: Don't fret. I'm sure we can work something out. What's your 2nd highest priorty item? 🙂

mturk_agent_2: Food 🙂 Well, let's see, how about this? You take 2 firewood, I take 2 food and we'll just do something with the water.

mturk_agent_1: I got a better deal. You can get the big bonus items in firewood, all 3 and a water, and I'll get 3 and 2? 🙂 

mturk_agent_2: Well, sure, I can go for that! You got a deal.

mturk_agent_1: Submit-Deal

mturk_agent_2: Accept-Deal