What separates a useful AI support agent from a chatbot that guesses
A chatbot that answers every question with equal confidence is the failure mode, not the feature. It will explain a return policy correctly nine times and then confidently state the wrong one on the tenth, because it doesn't actually know the difference between a question it's grounded on and one it's improvising. That tenth answer costs more trust than a slow reply ever would, because the customer has no way to tell it was wrong until the refund doesn't show up the way they were told.
The useful version starts from the opposite direction: define what the agent is allowed to answer before it goes live, not after the first bad reply. Order status, standard return windows, shipping timelines, and product specs are usually safe. Refund exceptions, anything emotionally charged, and edge cases outside written policy should route to a person by default. Judged this way, an agent that escalates a tricky ticket is doing its job correctly, not failing at it. I build in that boundary deliberately, then measure how well it's holding, not just how many tickets get closed.