The ambiguous nature of human language makes it difficult for a machine to always correctly interpret the user's requests, which is why we have seen a shift toward natural-language understanding (NLU).
NLU allows conversational interfaces to handle unstructured inputs that the human brain is able to understand such as spelling mistakes of follow-up questions.
[7] CUI provide ease of access to relevant, contextual information to the end user without the complexities and learning curve typically associated with technology.
Their backend systems work in the same manner as a voice assistant, with the front end utilizing a visual interface to convey information.
This visual interface can be beneficial for companies that need to do more complex business transactions with customers, as instructions, deep links and graphics can all be utilized to convey an answer.
Chatbots that leverage machine learning will continue to grow and develop larger content bases for more complex responses[citation needed].