While this sounds a bit like a fan boy statement, it is almost true. WordPress is so popular that it has a very deep plugin ecosystem. You will be able to find a plugin for booking movie tickets to set an appointment with your doctor.
I am actually loving that there is such a facility which we can bank on. Some of them are paid and some of them are super expensive. But the fact that they exists is a big comfort to a lot of webmasters who do premium projects.