Calling on the phone to reserve a table is not a meaningful or valuable human interaction to me. I doubt it is for the person whose job it is to take that call.
I'm pretty much the same way, but found it helps if you make it a goal to get the other person to break out of the script during the call. Say something silly, ask them how their day is going, ask them how busy they are today, if they get tired of calls like these, etc etc.
Answering the phone is often not the person's primary job; it may even be a distraction.
Even if a person's job is entirely replaced by a machine, the historical economic impact of automation has not been a reduction in employment nor an increase in inequality as the luddites feared.