Pay them off

Lana: I don't have time for you now... Here, take the credits and tell me where she is!

Weequay: Always a pleasure to get extra paid for a job! We have taken her to the Western Dune Sea to rot to **** there. It was the special request of the boss. She sure has tried to walk her way back, but she must be dead by now! Good luck finding her body if it is so precious for you!

Lana (thinking): Bastards...

You leave the cantina, rent a speeder and set out to search for her, with hopes of finding her alive. In a few hours of searching your speeder's lifeform detector shows a living being not far from you.

Lana: It might be her! I must check it out!

You drive to the location the detector showed as quickly as possible. Rarely anybody survives a few days in the scorching desert without any water... Furthermore, it would be a miracle if she hasn't been attacked by Tuskens...