He'll cower down and let them go in that case. If you want Light Side points, you can tell him that you're Darth Revan (he won't believe you, but whatever), you can persuade him that they aren't worth his time, or you can straight out tell him that you'll kill him. If you want Dark Side points, you can recommend a kind of torture to him. He'll recommend all sorts of punishments for them. He'll ask them questions and call them weak because, to be blunt, their answers are not evil enough.
A cutscene will stop you short when three young Sith Academy hopefuls are being verbally assaulted by a Sith Jedi. Work your way inside the door to the corridor there. Persuade them that they need no money (it's an easy persuade), and you'll be on your way. The two men here somehow know of the Ebon Hawk.
After some small talk (they'll notice you are a Jedi), you're asked for 25 Credits. They will welcome you to Korriban, or more accurately, Dreshdae, the only colony on the planet. There's nothing of any interest around the ship, so go straight to the two Sith officials in front of the ship, and a cutscene will take place. Upon landing at Korriban, get off of the Ebon Hawk and you'll find yourself on the landing pad.