The kitchen was based on the lower level, while the dining room, itself was based above. The adequate transportation of food required a waiter. It is otherwise known as a 'restaurant car', based on the sign overlooking the door in Second Class passenger car A.
Upon entering the room, a scene plays where Rebecca re-encounters Billy where she insists she doesn't need his help. The automatic door will initially be unusable because there is no power going to it. Continuing to the back of the second floor will cause a scene to play where a Leech Man awakens and attacks Rebecca. Fleeing to downstairs or actually defeating it will then cause a scene to play where Billy saves Rebecca from it. The train begins to move and the two then agree to work together and Billy gives Rebecca some Handgun Ammo. The player will also be given the Player's Manual 2 and will now be able to control Billy. After reconnecting the cables on the Fifth car roof the automatic door will work.
The automatic door while the power is out
"It looks like an automatic door. There's no power now, so it won't open."