Star Wars: The Original Radio Drama, Episode 6, "The Millenium Falcon Deal"

The Millennium Falcon Deal

With his aunt and uncle dead at the hands of the Empire, Luke accompanies Ben Kenobi to Mos Eisley Spaceport, a disreputable place where Ben hopes to find a ship to Alderaan. A space pilot points Ben in the direction of a huge Wookiee, Chewbacca, who serves as the co-pilot on the Millennium Falcon, a Corellian freighter. Ben is introduced to Han Solo, a cocky space pilot who quickly clears his schedule when Ben promises a small fortune in exchange for a ride to Alderaan. After the deal is closed, Ben and Luke go back into hiding until Solo is ready for liftoff - and Imperial stormtroopers close in on Mos Eisley in their hunt for the droids. But they're not the only ones being hunted, as a bounty hunter named Greedo is on the trail of Han Solo (x).