You have decided to leave your current employment.
Sample Answer
Mr Adam, I am writing this letter to inform you about the change in my interest in a private job. Even though I have been glad to work in Microsoft company till now, I am planning to move out of the company due to some circumstances. I have been working with full of dedication and devotion in Microsoft for the last ten years. Working here was so precious for me as I achieved a lot of progress in my work and career. As you know, I am an immigrant here in Canada, and my parents are still back home, and because of their age, they are not feeling well most of the time. Moreover, I am the only child they have, so no one else can help them. So I was thinking of going back and spending some time with them and pursuing my other career in India as a developer. Anyways it was a great time that I spent with you and all my colleagues. I am looking forward to seeing your response. Regards, Smith