What is Conversational Interface?
A conversational interface (or conversational user interface) simulates a conversation with humans. CUI uses natural language processing and voice recognition to mimic human conversation.
Eg: Amazon's Alexa, Apple's Siri, Microsoft's Cortana, and Google Assistant.
A conversational user interface (CUI) is a user interface for a computer that simulates interaction with an actual human. Historically, computers have relied on text-based user interfaces and graphical user interfaces (GUIs); (when the user presses the "back" button) to translate the user's desired action into commands understood by the computer.
While an effective mechanism for completing computing actions, there is a learning curve for the user involved with the GUI. Instead, CUIs allows the user to communicate with the computer in their natural language, not in syntax-specific commands.