Training
Confidence level
When the brain is not 100% certain to understand something the user says, it makes an elaborate prediction based on its smart AI algorithm and answers depending on its confidence level.
The only way that the brain answers with 100% confidence is if the user's message is exactly the same as what you have written in an intent expression.
You can check these predictions and use the Train it functionality inside Test to manually link the intent with the correct expression.
A very good way of using training and increase the confidence level of your brains, is to invest a bit of time and feed them with profession-specific language and jargon, so that it learns and adapts to your needs.
With state-of-the-art NLP algorithms, machine learning and a bit of guidance, your brain is going to be able to participate in meaningful end-to-end conversations with your users!