Learn how to write a resignational letter if you're quitting for personal reasons. I am writing to inform you of my decision to retire from my position as (Your Job Title) at (Company Name).My last day of work will be (Date). Dear Ms. Emily Clarke,. Simply write that you're leaving for "personal reasons" after stating your intent to resign and your last day of employment with the company. You might simply say, "I was recently offered a new position" or, even more simply, "I am writing to confirm my resignation. You might simply say, "I was recently offered a new position" or, even more simply, "I am writing to confirm my resignation. With deep regret, I am writing to inform you that I am resigning from my position as sales manager for personal reasons. It includes reasons for resignation, effective date, and appreciation for the experience.