Help with limiting entries

I built an app for a church to ease up checking of attendance who booked for private worship. The booking is currently being done on jotform.

Now i am thinking about building a booking app which will have control to limit entries due to limited seats. So if a cluster has reached its limited number of seats available, users will not be able to book or register on that particular date.

What would be the best approach in doing this?

Hi @pongkyuno
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