Hello Sharon! Thanks for bringing your question to planDisney! Let's start by giving some credit to you for scoring a great reservation at
Oga's Cantina in
Star Wars: Galaxy's Edge at Disney's Hollywood Studios! That is a coveted reservation!
I can understand the confusion caused by the park operating hours for
Disney's Hollywood Studios and the operating hours for Oga's Cantina. I want to ease your mind by sharing that the hours are in fact different. Disney's Hollywood Studios will close at 7:00PM during your visit. However, Oga's Cantina will be open until 8:00PM. It is not unusual for Disney Dining locations to remain open later than the parks in which they are located! While you won't be able to experience any attractions when your dinner is over, you will be able to walk through a less crowded Star Wars: Galaxy's Edge and take in the truly amazing detail that Disney Imagineers put into this land!
Prior to your dinner reservation try to experience the two amazing attractions located in Star Wars: Galaxy's Edge!
Millennium Falcon: Smugglers Run will get you into the cockpit of the most famous ship in the Star Wars universe!
Star Wars: Rise of the Resistance will put you into your very own Star Wars adventure as you experience a nearly 18-minute long encounter in a galaxy far, far away! I like to refer to this attraction as a mini-movie starring you!
Hakuna Matata! Jonathan