If you are using Calendly to let people schedule meetings or appointments on your site, you can use LeadBoxer to identify these leads and see all their behaviour.
Here is what you need to do:
Make sure you are using the Pro version of Calendly
in your event settings, open the Confirmation page element and set it to redirect to a confirmation page and make sure to enable the "pass event details.." checkbox. This will add all the event details to the URL as parameters.
On your site, create this confirmation page and make sure the LeadBoxer tracking pixel is installed
var url_string = window.location.href
var url = new URL(url_string);
var invitee_full_name = url.searchParams.get("invitee_full_name");
var invitee_email = url.searchParams.get("invitee_email");