<human>:  How do I write a professional resignation letter?
<bot>: Writing a professional resignation letter requires that you explain your reason/s for resigning, express your gratitude for the opportunity, and offer assistance to ease the transition. Start by addressing the letter to the person you are resigning from. Then, state clearly and concisely why you are resigning and when you intend to do so. After that, thank them for the opportunity and offer assistance to ease the transition, such as helping to train your replacement. Close the letter by expressing your appreciation for their guidance, then sign and date the letter.