Hi this is Ravin,
I am a full time freelancer and I've been doing sales & marketing for about 6 years and I'd be happy to see if I can make some positive contribution towards your company.
I'd be interested to take up this opportunity to work for you as a sales agent.
I'd be happy to tell you more about myself but I'm keeping this proposal as short as i can so that it doesn't ignored.
Awaiting your reply.
Thanks and Regards,
Ravin