Participant mturk_agent_1's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: I have a couple of water filters, so as long as we can find water, we will be ok.
Medium: I also have a growing teenager. If we're not careful, they will eat everything I brought!
High: I've brought my elderly mother on this camping trip. She will benefit from a bigger, warmer fire.

Participant mturk_agent_2's preferences:
value2issue: Low: Food
Medium: Water
High: Firewood
value2reason: Low: I need food to keep up my energy from hiking and camping. 
Medium: I need to drink a lot more water due to my kidney issues to keep myself healthy.
High: I need additional packages of firewood in the case of an emergency I won't freeze and can survive with out food and water for a few days but I need warmth.

Negotiation dialogue:
mturk_agent_1: I'm hoping to get some firewood, would you be willing to give me two packages?

mturk_agent_2: I was hoping to get more firewood, I needed more firewood than other things.

mturk_agent_1: Let's try this. What do you need least?

mturk_agent_2: I need food the least. 🙂 

mturk_agent_1: Would you be willing to give me two packages of food?

mturk_agent_2: Yes, I am willing to give you two packages of food. 

mturk_agent_1: Ok, I don't really need much water. What do you suggest we do about that?

mturk_agent_2: I actually needed more water because of my kidney issues. 

mturk_agent_1: I would be willing to give you two packages of water

mturk_agent_2: That sounds good, thank you for giving more packages of water. I really need them. 🙂 

mturk_agent_1: Ok, now what would you consider to be reasonable for firewood

mturk_agent_2: I was hoping to get two packages of firewood to have for emergencies. 

mturk_agent_1: The thing is, my elderly mum is with us and she would do much better in the evenings with the warmth

mturk_agent_2: If you give me 3 packages of water I am willing to give you 2 packages of firewood. 

mturk_agent_1: deal!

mturk_agent_2: Okay, thank you. 

mturk_agent_1: Submit-Deal

mturk_agent_2: Accept-Deal