Using entities

In the First-President intent, you noticed that the intent had a problem answering the question who is the second president of USA? because the response was static, only replying with the first president, George Washington, and not the second president, John Adams, regardless of which ordinal positions were given by the user. Let's address this issue by dynamically creating the response using an entity:

1. Let's start by creating an entity called president-number. In the first column, add the presidents' names, and in the second column, add the ordinals that match the president. The following screenshot shows the president-number entity:

2. Now, create a new intent called Find President. Enter who is the first president of USA? in the User says textbox and then highlight the words first president and you will see that a drop-down pops out, where you can search and select the entity that you created, called president-number. The following screenshot shows the process of mapping the entity to the highlighted word:

By accessing the entity value within the response, you have the ability to create a dynamic response that can map the ordinal value to the president's name. $president-number.original refers to the user's ordinal input, first president, and $president-number refers to the ordinal value mapped to the name George Washington in the president-name entity. The response The $president-number.original of $geo-country is $president-number creates a proper answer to the user's question about who was the first or second President of the USA. When you test this in Google Assistant in Dialogflow, you will see that the proper response gets returned: The second president of USA is John Adams.

3. Now, create a second question that does not have a geo-country, USA: Who is first president?, and create an equivalent response The $president-number.original is $president-number. The FaqChatBot agent will be smart enough to figure out that if the geo-country is omitted in the question, the agent will use the response that does not have $geo-country. The following screenshot shows the completed Find President intent: