Participant mturk_agent_1's preferences:
value2issue: Low: Firewood
Medium: Water
High: Food
value2reason: Low: We do not plan on starting a fire
Medium: We drink alot and don't want to get hungiver
High: I have my daughter with me and she likes to eat

Participant mturk_agent_2's preferences:
value2issue: Low: Water
Medium: Firewood
High: Food
value2reason: Low: I did bring my water purifier on the trip, but it case that fails, I would need water as a backup. 
Medium: I need the firewood because I want to make smores with my sister who has never done it before. 
High: I would like the food packages because I plan to go hiking and I don't think I have brought enough food for after the hike. 

Negotiation dialogue:
mturk_agent_2: Hello

mturk_agent_1: Hi can I ask what camping supplies you most need?

mturk_agent_2: I would like the 3 food packages because my sister forgot to pack any food items for the trip. You can have all the water and firewood. 

mturk_agent_1: Oh no!  I have my daughter with me and she really likes to eat.  I was hoping to get at least some of the food.  Do you need water or firewood more?

mturk_agent_2: I'm sure we can come to some compromise. I know my sister and I want to make s'mores in the evening. How about I get 2 food and 1 firewood, 1 water and you get the rest? 

mturk_agent_1: I love s'mores.  Food is my number one concern though.  If I'm only getting 1 of the food I really need all of the water.  How does that sound?

mturk_agent_2: So I get only 3 packages? 2 food and 1 firewood? 

mturk_agent_1: Do you need more firewood?  I could compromise there.

mturk_agent_2: How about I get 2 food and 2 firewood? You can get all the water plus 1 food and 1 firewood? 

mturk_agent_1: Yes that sounds fair.  Deal.  

mturk_agent_2: Submit-Deal

mturk_agent_1: Accept-Deal