Hello. I suggest adding a rating system or reviews for the staff. So that people can book services from the best specialists. For example, I make an appointment with a doctor, I get to the choice of a doctor and in the block of choosing doctors, it would be good if they were displayed with a rating (doctor 1 has a rating of 5 stars, doctor 2 has a rating of 4.7 stars, etc.) and choose a doctor with the best rating. I think this would be a great option for your plugin. I add an example of implementation in the attached image.
4 months ago