To: Robert Smith, Sales Manager
From: Bob Fu, Sales Development
Subject: Terminating Engagment
Mr. Smith, I have worked in the Sales Development as a salesman for six  years, and I have been satisfied with this position.
However, a friend of mine introduced me to Goldlion Company, and I have  decided to accept a post that will give me greater possibilities for promotion  and an increase in my salary. I therefore write this memo as formal notice to  terminate my engagement with you one month from today's date.