How to know if a client specifically chose me or not?

When we used another platform, we could see a :heart: on the appointment if the client has chosen their favourite practitioner. But as far as I tested on cliniko, no matter if I chose no preference or a specific practitioner, that seemed the same on the calendar if it turned up to be the same practitioner. We want to give clients the flexibility to choose no preference, also we can allocate appointments to different practitioners to reduce unnecessary gaps if the client doesn’t mind to be with anyone. But also, we want to make sure the other clients will be with their favourite practitioner if they have one. How can we achieve that? TIA. Xx