[As they left I said good night and as usual, as with all my customers asked how everything was affording the opportunity to register a complaint, none was given.] If the restaurant was so concerned with the customer why did they not ask if there was anything wrong with the food when the plates were taken away nearly full. To ask a customer who had a bad experience how everything was after the fact does not do the customer any good. The customer likely unsatisfied with the meal just wanted to leave. The effort need Not have been made by the customer to report to you what went wrong. Rather, if the restaurant wanted to have happy clients they would have taken notice that the plate was nearly untouched and at that point the restaurant should have made an effort to hear about or rectify the problem.