How to Write an Immediate Letter of Resignation? Professional resignation letter examples for different reasons.Free templates and writing guide to resign on a positive note without feeling awkward. Give the reason for resignation. If you are handing a regular notice, including the reason for quitting or not is totally up to you. Add contact details, company name, and date. I hope this letter finds you well. I'm writing to inform you of my intent to resign from my position as a staff nurse in the ICU at Johnson County Hospital.