Hello, how are you today?
I'm doing well. How about you?
I'm good, excited to get this camping trip underway! 🙂
I'm excited as well! I'm hoping to be able to pick up a few last minute items for the trip. 
Me too!  What kind of items are you looking for?
I would like to get extra food, firewood, and water. I had a few things change last second, so I'm worried I won't have enough for the trip.
Sorry to hear that!   I am looking for some items too, maybe we can help each other out.
Yes, that sounds like a great plan. I think working together is our best option. I'm hoping to get some extra food. I had an extra person decide to join last second, and I'm worried I won't have enough. My friend has never been camping before, so I want to give them the full experience. I'm worried they will hate it if we don't have enough food. ☹️☹️
That is always a big worry.  I am feeling exactly the same about water.   Would you be willing to trade food for some water?   I'd be happy to give 3 food for 3 water.
What about firewood? I injured my shoulder yesterday, and now I won't be able to cut my own once I get to my campsite. ☹️ Do you think you could throw 2 firewoods in?
I think I could do that.  2 Firewoods and 3 water for 3 Food and 1 Firewood?
Yes, that's a deal.