They all seem OK inside a script (in English), but become super-annoying very fast, when moving out of their pre-designed limits. Even if a bot understands 2,000 variations of “book me a meeting” — it’s still not AI, sorry guys.
I Was an Undercover-Bot For 2 Months. Here is What I Learned.
Ami Ben-David

It becomes particularly annoying to the increasing group of digital literates who only engage with [what they think is a human until they turn out to be] a bot when the question is outside the norm. So when you get a complex problem and need a person to sort it out and encounter a bot, it becomes enraging.