资料题：What is the main purpose of the second letter?

TO: Jack-Doe2006@yahoo. comFrom: George. Gilhooley@ yahoo. comSubject: Application for the Programmer PositionDate: July 28 ,2009Dear Mr. Jack Doe,I am writing to apply, for the programmer position advertised in the Times Union. As requested, I am enclosing a completed job application, my certification, my resume and three references.The opportunity presented in this listing is very interesting, and 1 believe that my strong technical experience and education background will make me a very competitive candidate for this position.The key strength that I possess for success in this position include:. I have successfully designed, developed, and supported live use applications .. I strive for continued excellence.. I provide exceptional contributions to customer service for all customers.With a BS degree in Computer Programming, I have a full understanding of the full life cycle of a software development project. I also have experience in learning and excelling at new technologies as needed.Please see my resume for additional information on my experience.I can be reached anytime via e mail at george. gillhooley@ yahoo. com or my cell phone, 909-426-537.Thank you for your time and consideration. I look forward to speaking with you about this employment opportunity .Sincerely，George GilhooleyEnclosure: Resume and other relative files TO: Jack - Doe2006@yahoo. comFrom: George. Gillhooley@yahoo. comSubject: ConfirmationDate: August 3, 2009Dear Mr. Jack Doe,I submitted a letter of application and a resume earlier this month for the programmer position advertised in the Times Union. To date, I have not heard from your office.I would like to confirm receipt of my application and reiterate my interest in the job.I am very interested in working at Sycamore Company and | believe my skills and experience would be an ideal match for this position.If necessary, I would be glad to resend my application materials or to provide any further information you might need regarding my candidacy. I can be reached at 909-426-537 or george. illhooley@ yahoo. com. I look forward to hearing from you.Thank you for your consideration.Sincerely,George Gilhooley