Dear D..... so this is it. Today is your last day with the company. It is time to say good bye ... again. Thanks for being such a good assistant to me all these years. You are a fast learner and worker. Thanks for being able to understand my sometimes very vague and last minute instructions, and still being able to complete your tasks on time most of the time. I'm happy that you have found the life you want and have plans for the future. Most importantly I hope you have found the ultimate happiness that you are looking for.
You know we will always be friends, no more supervisor-assistant relationship. Do stay in touch and feel free to call me when you need advise or help. Take care!!!!