Hiya Casey - welcome to planDisney!
I'm so glad you decided to stop by with your question!
Star Wars: Galaxy's Edge is one of the most immersive and magical places at
Walt Disney World Resort, and hidden through an unassuming door is
Oga's Cantina, one of the most innovative (and notorious) watering holes in the galaxy!
When making any
Advance Dining Reservation at Walt Disney World Resort (including at Oga's Cantina) you do
not need to indicate which specific Guests will be attending, though the person making the reservation will appear as the first Guest automatically. So, it's completely fine to leave the other two spots as "Guest 2" and "Guest 3" although the only way for the other Guests to see the reservation in their own My Disney Experience account is to link them to the reservation. That's a roundabout way of saying yes, you should go ahead and search for availability for three people and make your reservation!
Just remember, in order to join Oga, everyone will need valid
theme park tickets and
Park Pass Reservations for Disney's Hollywood Studios for the day you wish to imbibe at the Cantina! If you're looking to get a buzz in multiple ways, be sure to try my favorite, the Fuzzy Tauntaun!
Have a blast, and
let me know if any other questions come up as you continue planning!
Ryan J.