There are basically three situations.

1: Not allowed.

Sign your name and write down the dog tag. Then tell you where dogs are forbidden to enter the boat, and tell you that if you want to leave, you can leave the dog in one of their rooms.

You must take a cage. Or after boarding the boat, you can only store the dog in a separate place. You can only take it back when you leave. Or you need to take him out for a walk after boarding the ship, and you need a mortgage deposit when you go to the storage office to collect and sign.

This is just my guess.