I think I saw this somewhere, but I cannot find it atm.
From inside a Provider's login, it'd be nice if there was a way to copy the external link to share with someone via a chat or e-mail. The link would then only allow the service to be selected (if there are multiple for that provider) but the provider should be locked to the one in the URL.
It makes it easier for someone to book an appointment with the right person :-)
-joho