Understanding Human-in-the-loop and how to implement it

Natural interfaces, with users expressing their needs in natural language, are the new way to engage customers. What dot they all, including chatbots like Facebook M and meeting schedulers like x.ai, have in common? Behind the scenes, algorithms and humans are working in tandem to answer requests. Let's describe it with a simple flight information example, where the user asks "What's the status of FR 8542?". Having people intervene in any of these steps is called Human-in-the-loop.