Participant mturk_agent_1's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: Water is an survival necessity. 
Medium: I want to have enough food to last the entire camping trip.
High: It gets very cold at night at I don't want to freeze while camping.

Participant mturk_agent_2's preferences:
value2issue: Low: Firewood
Medium: Water
High: Food
value2reason: Low: It's the summer and very hot with no expectation of rain. Firewood isn't a priority.
Medium: Water is a critical resource, but is usually available at campsites.
High: It's a critical resource. Last time some of our food spoiled.

Negotiation dialogue:
mturk_agent_1: Hello, I hope you are well. I was hoping to get some packages from you. How does 3 packages of firewood, 2 packages of food, and 2 packages of water sound?

mturk_agent_2: That's a steep price. That you would give you 7 items and me only 4. I think we can work something out if you're willing to compromise though. Food is very important to me. If you are asking for 3 packages of firewood, I'd like 3 packages of food.

mturk_agent_1: I'm not sure about that offer. I do need food as well, but water is not my number one priority. Would you be willing to give 3 packages of firewood, 1 package of food, and no water?

mturk_agent_2: Let me consider. I miscalculated on my first statement - your initial offer would leave me with only 2(!) items. But this is more reasonable. I assume you value water the least?

mturk_agent_1: Yes! Firewood is my top priority, along with food. What do you need most?

mturk_agent_2: Food is highest, and a critical resource of course. 🙂 Last time I went camping, some of it spoiled. Firewood is least of my concerns since it's very hot where I live right now, so I'm willing to let you have all 3 of that.

mturk_agent_1: Awesome! Firewood is much needed because it gets very cold at night here.

mturk_agent_2: But you still need some food. You're asking me to give 1 package of food, 3 firewood, but no water? Does that offer still stand?

mturk_agent_1: Yes, I think that will work in favor of us both. What do you think?

mturk_agent_2: I think I can work with that. So, just to be sure we're on the same page, you will get 3 firewood, 1 food, 0 water. I will get 0 firewood, 2 food, 3 water.

mturk_agent_1: Yes, that is the deal on the table.

mturk_agent_2: Submit-Deal

mturk_agent_1: Accept-Deal