Dear sir/madam
Your advertisement on Comcast.com for a Customer Account Executive fits my experience and qualifications perfectly, and I am writing to express my interest in and enthusiasm for the position. Your software products are truly on the cutting-edge of technology -- you offer products that can change the way a company conducts business on the Internet. I am excited by this technology and would be able to translate this excitement to a business benefit for your current and future clients. If you agree that my qualifications are a close fit to your needs, I would be delighted to meet with you personally to discuss strategies for expanding comcast market presence. 
I will follow up with you in a few days to answer any questions you may have. In the meantime, you may reach me at (804-264-0565) or via email at (Minhaj1112@yahoo.com). I look forward to our conversation. 
Sincerely, 
Minhaj Uddin