hello,
Dear Sir/Mam,
I am willing to offer you complimentary trial, to make a debut here. Please send me the topic of your choice and I will write you a very well researched and original article. If you think my work is upto mark and as per your requirements you may then award me the project, otherwise there are no strings attached and I wont be the sad party :) - looking forward to a positive and prompt resposne.
Regards - Ayaz Ali