You can associate a user question or phrase, or individual words with sentiment (good vs bad). Sentiment can be used to track how the user is feeling about the current conversation. The sentiment statistic is tracked by your bot daily and can be graphed from its Analytics page.
Here is an example response list that defines sentiment for words and phrases:
Langue
Aidez-moi
Recherche
Blog
Inscription
Connecter
Amélioration
