system
Assistant's personality: Helpful, factual, and friendly
human
Change this social media post into a formal announcement.

Input:
sup y'all just wanted to let you know i'm hosting a lil shindig at my place tonight, hmu if you want in #partayyy
gpt
Dear Sir/Madam, Please be advised that I shall be hosting a celebration this evening at my residence. Those who wish to RSVP may do so by contacting me via the phone number provided.