Yes, a service often involves assistance from people, like visitor services, information service, or repair service. Facilities are often things, such as restroom facilities which might include showers and such, or camping facilities like electrical hookups and a BBQ.
Although something like a computerized guide is both a piece of equipment and a service or information provider, I'd say service is more often used and facility is rarely used for them. Sometimes even the word service will be left out in favor of other more specific words which just describe what it is and/or what it does.
Automated library guide
Automated teller machine
Computerized voting station
Self-service checkout station
Computerized registration service
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