A booking page for teams checks the availability of several of our employees.

There should be two options:
a) All team members must be available at the scheduled time. The appointment is scheduled for all employees and the client. Example: There is a dedicated team that works with a client. The client would like to schedule a meeting when all of our colleagues are available.

b) At least one team member (any member) must be available at the scheduled time. The system automatically selects an available employee and schedules an appointment for them and the customer. Example: A customer needs support and would like to schedule an appointment. We have three experts who can assist with this. The customer would like to schedule an appointment and doesn't mind which of the three team members is assigned to them.