Participant mturk_agent_1's preferences:
value2issue: Low: Water
Medium: Firewood
High: Food
value2reason: Low: I have water filters and the like, but more water right from the start would be more convenient.
Medium: I expect to be able to find fuel on the trip, but it's always good to be careful.
High: Some of the food I had for the trip turned out to be expired, so I need replacement food.

Participant mturk_agent_2's preferences:
value2issue: Low: Water
Medium: Firewood
High: Food
value2reason: Low: Water packages might be heavier than food. The medicines I take can cause fatigue. I would prefer to have more food than extra water. 
Medium: Diabetes make my extremities really sensitive to colder temperatures. It is important that I keep warm as much as possible, or I might get injured hiking. 
High: I'm a diabetic. My medication requires me to eat specific foods often. I need more food packages to insure I have the types of food I need in the quantity I require. 

Negotiation dialogue:
mturk_agent_1: Hello there.

mturk_agent_2: Hi there 🙂

mturk_agent_1: How goes it?

mturk_agent_2: Everything is pretty great with me. And you?

mturk_agent_1: I'm doing pretty well, but found out that some of the food I had packed for my camping trip was expired, so I'm wondering if perhaps we can make a deal?

mturk_agent_2: Oh no ☹️. What type of deal would you like to make?

mturk_agent_1: Well I was wondering if you might be in the market for water?

mturk_agent_2: I seem to have quite a bit of water, but I am in need of some firewood. Would you be willing to trade for that?

mturk_agent_1: I have some spare firewood sure, I'm a little more hesitant to part with it but I can make it work!

mturk_agent_2: That's great. What did you have in mind?

mturk_agent_1: If you're willing to give me 3 food, I figure I can give you 3 firewood and 1 water

mturk_agent_2: It seems I misunderstood your problem. I thought you were getting rid of food. I don't have much food to spare, but I'd be willing to give you one package for 2 firewood and 1 water

mturk_agent_1: Ah, well, if that's case and we're both short on food, I suppose I can let you have the 2 food then, although would it be possible to let me have the 2 of each of the other items then?

mturk_agent_2: That sounds resonable to me

mturk_agent_1: Submit-Deal

mturk_agent_2: Accept-Deal