The Final Principle Is Commitment and Consistency

The final principle is commitment and consistency. People want to say yes to those requests that are consistent with the commitments they've already made. In a chicago restaurant, a big problem was people who would call, make a res ation and then not show for it. The owner of the restaurant tried a small technique that dramatically reduced no shows. He asked his receptionist: Will you scall if you have to change yor cancel your reservation? Of course, that produced a 67 % drop in no shows.