Leaving a job isn't easy. A short resignation letter is the way to go.Include your name, position, the date of resignation and the intended last day of work in the first paragraph. In this article, we discuss how to include a reason in your resignation letter and provide some samples to guide your writing. Please accept this letter as a notice of my resignation. State that you wish to quit and include your final day of work. It is my regret to inform you that I must hand in my resignation as head of security at Cornado Center. OFFICIAL RESIGNATION LETTER - rrcc. Please accept this letter as official notification of my resignation from my position as Floor Manager, effective immediately. Add contact details, company name, and date.