Interpretation of dream: Register

To dream that you register at a hotel under an alias, signifies that you will undertake some guilty enterprise that will give you much distress. You will lose your peace of mind. To dream that someone else is registering into a hotel using your name, signifies that you will leave some work that others will have to finish for you.

More interpretations:
Register (Miller): To see a refrigerator in your dreams, portends that your selfishness will offend ...