If you have a booked call funnel that uses ScheduleOnce. There are 3 key points:
1. You need to setup tracking on ScheduleOnce:
2. Send us a "Booked Call" custom conversion via Zapier or HTTP post or CSV upload.
3. You have people booking calls and live sales reps booking calls. For the live sales reps, I would use a separate booking page - you can clone the ScheduleOnce setup you have. You could send different "Booked Call" custom conversion parameters to differentiate the calls that came purely online vs. sales rep enabled if you wish.
To test out the tracking, you can use this URL below, that has all 5 utms with "test" in the variable values: