Participant mturk_agent_1's preferences:
value2issue: Low: Food
Medium: Water
High: Firewood
value2reason: Low: I need more food as I got more people attending than I planned for.
Medium: I need water for the children to drink as we hike the mountains.
High: It is so cold out here and I will freeze if I do not get firewood.

Participant mturk_agent_2's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: I have a camping mate who needs a lot of water because of the medication he takes.
Medium: We had an extra guest show up and need to have enough food to feed everyone.
High: I get very chilly and would like the extra firewood so I can comfortably enjoy our camping trip.

Negotiation dialogue:
mturk_agent_1: Hey there friend.

mturk_agent_2: Hello! How are you?

mturk_agent_1: I am fine. I am settling down in preparation for camping.

mturk_agent_2: Awesome!  Do you go camping often?

mturk_agent_1: No. This is my first time and I am anxious whether I have enough supplies. 

mturk_agent_2: I understand that.  I camp quite often, so I can help you with any questions you have. Let's try to come up with a fair deal for the extra packages we can have.  I often get chilly due to some medications I take, so I would really like to have extra firewood.  Is there anything in particular you would prefer to have extra of?

mturk_agent_1: Firewood is also of priority for me. I am  afraid I will be a Popsicle if I do  not get more wood for the overnight fire. 

mturk_agent_2: I can certainly understand that, no one likes to be too cold.  How about I'll make an offer, and then we can see where we stand in terms of what we think is fair.   What if I take 2 packages of the firewood and you take 1.  That way you can be sure to stay warm, and I won't need to worry for my health. In exchange for this you can have 2 of the food and 2 of the water and I will take one of each.  You'll end up with more extra supplies, than I will, but my health is my biggest priority here.

mturk_agent_1: That sounds like a good deal to me

mturk_agent_2: Great!

mturk_agent_1: Submit-Deal

mturk_agent_2: Accept-Deal