I need help building a er diagram for a hotel. A brief overview for the project, I have to build a database system for a "fake" hotel. The system should be able to allow customers to make reservations, cancel, check in, check out, etc. The system should also fluctuate its rates based on month. Right now I have to design a er diagram for it the entites and attributesI have so far are hotels(Pk Hotel id, hotel address, phone number), rooms(Pk Room#, room type, rates, number of beds, FK customer_id), customers (customer id, customer first name, customer last name, DOB, Drivers License, credit card info), reservations(Associate entity) (customer id, room#, hotel address). What other attributes and/or entites should I add?