This is the scenario consumers will use -- direct from your own webpage -- when wanting to initiate a job and simultaneously schedule their first appointment.
The idea is, your webpage should strongly promote the idea of scheduling on-line, and have a prominent button for the purpose. Your setup will no doubt be more sophisticated, but the idea is, it should look something like the following:
John Doe Service, Inc
Go ahead, for demo purposes, click on that button, and we'll show you the same kind of interface your customer will see when doing the same from within your webpage.