Set expectations
Tell the attendee what will happen, how long it takes and what they should prepare.
Use sensible reminders
Send a small number of reminders at useful intervals with direct reschedule and cancel options.
Make rescheduling easy
A reschedule is better than a silent no-show. Put the link where the attendee can find it.
Confirm high-value meetings
For important consultations, a human confirmation can outperform additional automation.
Track causes
Segment no-shows by source, appointment type, lead time and qualification so fixes target the real problem.
Choose software
Compare software against this workflow rather than choosing from a feature list alone.