参考范文：

Dear Sir or Madam，

I am a to-be graduate from Dongbei University of Finance and Economics. The letter is meant to convey my interest in the position of sales manager in your company.

My qualifications, I believe, just amply meet your requirements. To begin with, my major, marketing，guarantees that my educational background is right consistent with the position. In addition, I've accumulated some relevant experience as a part-time salesman in college days, which I'm certain will help me to be a competent sales manager. What's more, I am a good team-player, self-motivated and eager to learn.

I shall appreciate it a lot if you could schedule an interview with me. Looking forward to your reply at your earliest convenience.

Yours sincerely,

Zhang Wei