How Should I apply for social session pls advise

Processs to apply for social session slot as Entertainment need social session while walking when he see other dogs he started braking and try to pull leash towards them… Even we try to control he get aggressive towards the other dog… Rest of the time he stays calm and walk confidently…

We are finalizing the process. we have received 400+ requests to join the session, so need to bring in more volunteers and we are working on that.