General case scenario: Company ABC sells costumes. They have a website that customers must register to if they want to purchase something. Once the customer finds something of interest, they will have to request for an estimated cost of the costume. After the cost has been determined, the customer will receive the cost and can either accept the cost or reject it. If the customer wants to change any information or delete their account, they must log in to their account, go to the account profile and the changes will be made there.

Draw an ERD (Entity Relationship Diagram) for the following:

1. Managing a user's account (Updating User, Deleting User)

2. Cost approval