Conversational interfaces such as chatbots and voice assistants present many localization challenges — humor, for example. And that’s not even considering if the original content was all that funny to begin with.
Conversational UI localization and language design skills are central to a great user experience. CUI means we moved from a "user"-centric concept of design to a human-centric one. After all, what could be more "natural" that talking to a computer? Both humans and computers "converse" in dialog, and it's the language design knowledge for such a conversation that's critical to delivering a natural, human-like interaction between the two.