Patrick - you may find this useful: "One restaurant owner greatly reduced the percentage of no-shows (people who booked a table but didn't honour the reservati

Patrick - you may find this useful: "One restaurant owner greatly reduced the percentage of no-shows (people who booked a table but didn't honour the reservation and didn't call to cancel it) by having his receptionist change what she said when taking a reservation from 'Please call if you have to cancel' to 'Will you call if you have to cancel?' Of course, nearly all customers committed themselves to calling by saying 'yes' to that question. More importantly, they then felt the need to abide by their commitment: the no-show rate dropped from 30 per cent to 10 per cent." (quoted from 'Yes! 50 secrets from the science of persuasion' by Goldstein, Martin and Cialdini) One other suggestion: Give your would-be customers a FREE split test. Half of the appointments get a reminder, half don't. Get the user to place a 'value' on the outcome of each appointment, then tell them the result of the split test. The user will be BEGGING to give you money.