Hello, how's it going
Hello there! how are you? hoping today is finding you well. I am taking a group of 40 kids camping, lots of work on my end. I was wondering, if its okay with you, will it be okay if I get all 3 waters? the needs of children differ from adults, I feel. the amount of water being spilled will be tremendous. I also need the extra supplies, for cooking, cleaning, and putting out camp fire, I am willing to give you 3 foods in exchange? what are your thoughts?
Well I was really hoping to get some Water as well, would you be willing to part with 1 Water for 1 food?
So sorry I completely understand, If i was in your shoes I would also would want the extra water. will you be okay if I gave you 2 firewood and 3 foods for all 3 waters? So sorry, I really need the water, 
I feel like that still has me giving up a lot by not taking any extra water. Would you be willing to sacrifice all the firewood?
I understand, believe me. may I ask how many camp members are coming along? children? or are you camping alone?
Its me, my wife, and my son camping. I understand your need for the extra water, but I have almost no need for the extra firewood. 
I understand, i will feel horrible if your child needed the extra water. I am willing to give you a water. I am in need of Firewood and I have sufficient Food for all of my 40 kids. Will it be okay If i get 2 fire woods and you get 2 foods?
1 Water, 2 food, and 1 firewood works for me.
Perfect! I will be getting 2 waters, 2 FW, and 1 food. Since you were so nice and understood my need. I am willing to give you all of my food. That way it feels you are getting a better deal