How is the manifest of passengers helpful?

There are clues all around. For example, have you visited the poker players lately?

Look at the cards a certain poker player is somewhat obviously holding up for you.

A pair of eights is called Snowmen. Have you seen that name before?

According to the manifest, Hal & Lana Snowman are staying in cabin 3009.

But that's for later. Another name is also of interest.

Vane Sojourn. Note the room number.

Sojourn, otherwise known as holiday. And Vane, an obvious anagram of ...Evan.

Ask the steward about Vane Sojourn and learn you can find a key backstage.