Agent
Front Desk Bookings and answers, around the clock.

People write to it on WhatsApp in plain words. It checks the calendar, books, and confirms — and anything sensitive goes to a person.
Books and moves appointments
Checks availability against the appointments it holds and writes the booking, then confirms by return message.
Answers what repeats
Hours, address, how to prepare, cancellation policy — from the answers you wrote. Anything not in them goes to a person rather than to a guess.
Works while you're closed
An enquiry at 23:40 is answered at 23:40. The morning starts without a backlog.
And what it will not do.
It gives no clinical information or advice — it hands over, and says that it has.
It promises no appointment that has no room in the diary it holds.
It handles no payments or card details.