We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. Discover how to write a professional resignation letter for call center agents.Get tips and samples for your BPO resignation process! Sample resignation letters for customer service representatives to help them leave their current job on a positive note with a wellcrafted resignation letter. What is a resignation letter, and how do you write one? Here are sample letters and templates, as well as tips for how to resign gracefully. Find out how to write the perfect resignation letter, including examples and templates of a professional resignation letter. This sample resignation letter is available for use on UpCounsel. I want to thank you for your support and guidance during my time here. Example: I'm writing to inform you of my decision to resign from my position as a park ranger with the National Park Service, effective May 1st.