It would be great to let the user select multiple dates and times with a Service Provider in a single "without having to repeat the full process of:

Select Service Provider --> Pick date and time --> Add bookings --> Select Service Provider --> Pick date and time --> Add bookings or Confirm ....

In other words, shortening the process to:

Select Service Provider --> Pick dates and times --> Confirm all bookings

thanks!

Yes, select multiple dates and times by clicking on a calendar then pressing confirm/book on several dates/times at once.