You want to give at least a two weeks' notice. A response to a resignation letter has to be wellframed and polite, but you also need to be able to convey your disappointment at seeing the employee go.This article delves into the key factors that can justify leaving a job without notice. Explore more articles. Manager: Please accept this letter as my formal notice of resignation from (company name), effective on (last day of work). An exempt monthly-paid staff member is expected to give at least four (4) weeks notice. Notice should be in writing. In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started. Here is a notice letter template UK you can use to write the specifics of your notice period when deciding to resign. Best Excuse to Quit a Job Without Notice.