Service (schema.org)
The schema.org type Service structures service offerings of every kind and makes details of scope, prices, target audience, place of delivery and ratings readable for search engines.
In practice
The serviceType should be worded as clearly and unambiguously as possible, so that search engines can classify the service correctly. areaServed states the catchment area for local visibility, and availableChannel states the channels through which the service can be booked or ordered. Combined with Review and AggregateRating, customer ratings for the service can be displayed as well.