How can I reschedule my lesson?

The rescheduling policy is:

You may reschedule 48 hours prior to your lesson without penalty.  If you need to reschedule after that, it is up to coach to allow it; otherwise you will have to forfeit that lesson.  

To reschedule, look at the confirmation email you received from the Calendly program.  It will have a "Reschedule" link here, at the bottom:

Then, just select a new time from the calendar!