To achieve the requested behavior in the event center case type:

Create a checkbox for customers to indicate whether they want catering for the event. This allows customers to specify their preference for catering.

Add a decision shape to evaluate whether the customer has checked the catering checkbox. Based on this decision, the case will either proceed to provide a rental rate quote or prompt the customer to choose a menu before receiving a quote.

Configure the menu preferences and appointment date fields with a visibility condition that displays these fields only if the customer selects the catering checkbox. This ensures that customers who do not want catering do not see these fields, streamlining the process.