It never works. You always just get the digital equivalent of a runaround and there simply isn't a human in the loop to take over when the AI botches it (again). So I gave up trying, this crap should not be deployed unless it works at least as good as a person. You can't force people to put up with junk implementations of otherwise good ideas in the hope that one day you'll get it right, customer service should be a service because on the other end of the line is someone with a very high probability of being already dissatisfied with your company and/or your product. For me this is not negotiable, if my time is less valuable to you, the company, than it is to actually put someone on to help then my money will go somewhere else.
I'm still not sure if you're speaking of SOP in general or AI-interfaces to them. Why don't you answer that simple question before ranting on?