Participant mturk_agent_1's preferences:
value2issue: Low: Food
Medium: Firewood
High: Water
value2reason: Low: I have to have food to take my medicine with multiple times a day, or I become violently ill.
Medium: I cannot risk getting cold. My body cannot properly regulate heat in a cold environment.
High: I have medical needs requiring medication causing heavy dehydration, so I have to consume extra water.

Participant mturk_agent_2's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: I have an emergency filtering straw, and there are lakes around. 
Medium: An extra person may be joining me on the trip. 
High: Firewood is essential, and we may need backup in case of any emergencies. 

Negotiation dialogue:
mturk_agent_1: Hello. Due to my medical needs, I need high amounts of food, water, and firewood. I need all the water and I am offering you one each of firewood and food.

mturk_agent_2: I need more food due to an extra person coming along with me, is there any way I can get 2 in exchange for 1. You can have 2 water

mturk_agent_1: I am willing to give you two food, but I still need all the extra water. 

mturk_agent_2: ok you can have all the water. Can I also have all of the firewood? I tend to get anxious and worry about emergencies a lot. 

mturk_agent_1: I don't think I can give up all the firewood. What kind of emergencies would be helped with more wood?

mturk_agent_2: I could get stranded out there for longer than I intended. While that may not happen, my severe anxiety would be at ease knowing I will be ok, if it does happen. 

mturk_agent_1: So what is your total offer right now?

mturk_agent_2: I am offering all of the water, but wanting all of the firewood in exchange. 

mturk_agent_1: And how much food would you keep/allow me to have?

mturk_agent_2: you can have 1 package of food. I am not greedy, but an extra person will be with me, and I want to make sure we will both have sufficient food. 

mturk_agent_1: I think we have a deal! 🙂

mturk_agent_2: Awesome! Have a great camping trip 

mturk_agent_1: Submit-Deal

mturk_agent_2: Accept-Deal