Tom: open the door quickly.
Ruby: tell Tom they must follow the person she met, without details. Then they both go after Stitches.

Ruby: Tell Tom to find a use for the key, tell him she has to follow a fellow prisoner and that she will keep in contact so he shouldn't worry, follow stitches and tell him she wants info before he flees.

Tom: Do what Ruby says, tell her to be careful and run back and use the walkie-talkie the instant she feels things take a bad turn.