Hello, I'm themain person of my family. My family consists of five members including me and we stated a weekend  trip . we do not have more food. Can you share 3 food packages with me?
I also need a lot of food. We're going camping in a desert environment and there's little resources. We're going to have to find a way to split the food and other resources amongst us. 
Thanks for letting us know your situation. In this situation, we have to share the available resources between us.Kindly tell what is your highest and lowest priority pckage?
Food is my highest priority. I'm less concerned with firewood, as I can find some along the way. How about you/
i'm also in the same situation. Food is first priority secondly water and the last priority is firewood.
Okay, I'm willing to give you 2 food packages if I can have 3 water packages. And then we can figure out firewood. 
That's great deal . I accept 2 pack of food 🙂. in this case, I need at least  2 firewood. Then only, we both can meet our requirements.
Okay that sounds good to me
Thanks for the understanding. If you don't mind, can you share only one water. Because, my children need some water.
If you would like me to share one water then I would like two firewood. I'm in a desert and there's no other water available to me. 
Okay. great. I accept 2 pack of food, 1 water and 1 firewood thank you.