Appointments for staff should not overlap

Hello!

I’m guessing that this might be a simple fix, but I couldn’t find anything related to it either in the documentation or the plugin settings.

We have 2 staff members, but only one location. Thus, if an hourly interval is booked for one of the staff, that interval shouldn’t be available for the other staff member.

How could this be achieved?

Thanks in advance,
Bogdan