This is a very, very odd situation, and they deserve answers and they deserve closure,” an attorney for the Kobayashi family tells PEOPLE

The family of Hannah Kobayashi, the Hawaii woman who vanished in early November after arriving in Los Angeles, insists their search for her is not over despite police saying she is a voluntary missing person.

Hannah Kobayashi, the Hawaii woman who’s been missing for more than three weeks after arriving in Los Angeles on a flight from Maui, has been declared a voluntary missing person, Los Angeles police said Monday.