Participant mturk_agent_1's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: We have plenty of water.
Medium: We forgot a bag with the majority of our food.
High: It's really cold and wood is scarce. 

Participant mturk_agent_2's preferences:
value2issue: Low: Food
Medium: Water
High: Firewood
value2reason: Low: Because i tend to go hiking far from camp site and gain a lot of elevation, it's likely i will need to stop and need few times, might come back in a dark or get lost, so extra food is really important safety
Medium: I tend to go hiking far from campsite and gain elevation fast, and usually do it mid day when it's hotter and additional water will be much needed on warmer time .
High: Weather in forecast is a bit on colder side so it's good to be safe, and I brought most food that needs cooking

Negotiation dialogue:
mturk_agent_2: Hello! I would like make a deal with you on firewood, water and food! Are you interested in any items ?

mturk_agent_1: Yes, I'd definitely be interested. How are you doing?

mturk_agent_2: Not bad, not bad. How are you. What's on your mind for camping? 

mturk_agent_1: I'm doing well. We're desperately needing wood. We didn't realize how cold it would be as it is our first time here. There is none around our area so we are really concerned about staying warm especially at night. We also forgot a bag of food, so that's another need for us.

mturk_agent_2: True. Turns out i'm dealing with similar situation, we didn't expect weather to be as cold, so extra wood is on my mind as well. Everyone might need to go to bed earlier and cook food that cooks short time since we low on wood !

mturk_agent_1: Yes, that's very true. I would be willing to give up water for more firewood.

mturk_agent_2: I like that. I could help you out. I'd be interested in giving you some extra food for extra water. We like to go far from campsite to hike and get up to high elevation, so i need to pack extra water just in case. We go during day, when it's warmest and need extra food in case we come back at nigh time or get lost! Not ideal. 

mturk_agent_1: You can never be too prepared. We stay closer to camp as we have little ones with us on this trip.

mturk_agent_2: are you interested in taking 1 firewood, all 3 foods and 1 water ? And then what's left would be to us ? 

mturk_agent_1: I would do 2 firewood, 3 foods and 0 water.

mturk_agent_2: Well it's important for both of us to get that wood ! 

mturk_agent_1: Submit-Deal

mturk_agent_2: Reject-Deal

mturk_agent_2: In order to get all food, can you give me additional firewood?

mturk_agent_1: How about I do: 2 firewood, 2 food and 1 water?

mturk_agent_2: Well, what would it take for you to give up extra wood? 

mturk_agent_1: 3 food and 2 water

mturk_agent_2: ok let's go with that. you take 3 food, 2 water and 1 firewood, let's make it happen that way and move on with camping ! 

mturk_agent_1: Submit-Deal

mturk_agent_2: Accept-Deal