@Lamar. .... Text certainly can be used to fill facilities.

A Restaurant can easily fill seats on short notice .... (Although not my first choice for a restaurant;   The street eats vendors in NYC are using Twitter hang on to their customers when they've changed location).

A restaurant that isn't using cheap technology to nurture their business is snoozing and will soon awaken to discover that someone who is will have stolen their business.

Your friend needs an easy to use Towncrier!  Video Here

Bestest.

Teddy Towncrier CPP Towncrier-Media.com Supercharging Your Visions.