Hi, my name is Amber I am really interested in your idea.
I think the story line is really good and I would love to write it for you.
I have a huge imagination and I am able to write a story at any length.
I would like to write a chapter or two for you and send it to you so you can see my level of writing and If my ideas are what you are looking for.
If you would like me to write the story for you let me know.