Write an e-mail to your supervisor, who is on holiday, and let him or her know about the retirement party for the Vice President of the company where you work.
I’d like to tell you about some of the news in our company. As you may know the Vice President is retiring this year. We’ve managed to organize a “goodbye party” which will be held at the Royal Hotel. I have been put in charge of organizing the party and I’d like to invite you to it. It will start next Friday at 6:00 o’clock pm. Have a nice holiday and see you soon.