Entities are knowledge repositories used by the bot to provide personalized and accurate responses.
With Entities you can easily extract important information from the ongoing conversation, such as phone number, e-mail address or anything you want. Use them when you want your bot to catch important data. 
How does it work?
Entities are data buckets that contain words and phrases with similar characteristic, such as movie genres or a product list. You can create as many entities as you need. To save your time, you can also use the ready to use system entities. Check the list here.
