Returne to the office request - Check Calendar capacity based on the building capacity

Hi there,

My scenario is to check the capacity of each level of the buildings and let the staff book a day to Work From Office.

For example, Level 5 has %20 capacity, and if it's full, we don't let anybody else book that level.

I was thinking to create a field call capacity, and for each submission mines, the number of the capacity but how can let people know the level availability?

Do you have any suggestions?

Thank you,

Bahareh