Hello how are you today? I would like 3 firewood because I will be camping in subzero temperatures. My friends will not have the food needed so I would ask for 1 extra food and give you 2. I am easily dehydrated so 1 extra water would help.
Hello, I can give you two firewood because I need one to keep my family warm while camping. I can offer you two waters so that you are better hydrated and one food as well. 
I would prefer 3 firewood. You can have 3 food and 1 water.
I'm afraid that I cannot give all 3 firewood and would need at least one of them. I will offer one more water or food in addition. 
I understand that you need 1 firewood. What was that for?
I will need one firewood to keep my family warm while camping. 
OH yes now I remember that. 🙂
And I understand the subzero temps will be hard to weather, which is why I would like to offer you two firewood. 
I will accept the offer of 2 firewood, 1 food, and 2 water. 🙂 
Okay, that is a deal. 
Thank you.