<human>:  How do I write a resignation letter?
<bot>: Writing a resignation letter is a straightforward task. Begin the letter by providing your official notice of resignation. Include the date that you will officially be leaving the company. If you have a written contract, be sure to reference your contractual obligations, including the notice peirod that you are required to give. Then, thank your employer for the opportunity to work at the company. Include a brief overview of your duties during your time there. Express gratitude to your employer and colleagues if you feel comfortable doing so. Finally, provide your contact information in case any questions arise.