Dialogflow Entities | Capture info your users say (Dialogflow tutorial)

Опубликовано: 13 Март 2026
на канале: Joren Wouters
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In this video, I will explain how we can use Entities with Dialogflow. I will cover:
What entities are
How you can create your own custom entity
And how to use slot filling in Dialogflow

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What is an entity?

An entity is a fact in a sentence that can refer to the who, what, when and where.
For example, an entity can refer to the topping of a pizza or the day of an appointment.

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System entities

System entities are entities that are built-in Dialogflow. That's why Dialogflow can automatically recognize that words as "two" and "three" are referring to numbers.

But it can do much more, for example, it can also recognize currencies.
Which system entities are available, depends on the language you use in Dialogflow.

Here is Dialogflow's documentation about system entities: https://cloud.google.com/dialogflow/e...

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Slot filling

Slot filling means that the intent is only finished if certain parameters are filled in.

In my example of ordering pizzas, it is necessary that a user fills in what topping they want on their pizza.

If a user does not specify a topping, we can automatically ask what topping they want on their pizza. We do this by setting a prompt in Dialogflow.

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Contents:
Intro: (00:00)
What is an entity? : (00:07)
Create custom entity: (01:00)
Add entity phrases to intent: (02:05)
System entities: (02:32)
Annotate custom entity: (03:30)
Two entities in one sentence: (04:12)
Use entity values in response: (05:25)
Slot filling: (06:14)