Calendar php and ajax

I have built a calendar for scheduling appointments and also for booking a session. there are two groups of users it is the lawyers who can schedule days of when they will be available for consultation and also the users who can book a schedule from the list of lawyers. The challenge that i have is that when i login in as a user (customer) and click to a specific lawyer the calendar shows me all the available dates of all lawyers.

I want when i click on a specific lawyer to give me the available schedule dates of that specific lawyer not for every lawyer.