Reply Conditions

Before the bot replies, the content of the reply can be determined by whether the slot has a value or not. You can use this mechanism to implement the basic logic of if-then-else.

All the reply conditions are defined in the Reply Conditions section.

Name	Slot Type	Usage
Greater Than	number	Checks if the value is greater than the specified number.
Greater Than or Equal	number	Checks if the value is greater than or equal to the specified number.
Less Than	number	Checks if the value is less than the specified number.
Less Than or Equal	number	Checks if the value is less than or equal to the specified number.
Starts With	string	Checks if the string starts with the specified prefix.
Ends With	string	Checks if the string ends with the specified suffix.
Contains	string	Checks if the string contains the specified substring.
Not Contains	string	Checks if the string does not contain the specified substring.
Regex	string	Checks if the string value matches the specified regular expression pattern.
Is Empty	string	Checks if the string value is either None or empty.
Is Not Empty	string	Checks if the string value is neither None nor empty.
Equal	string/number	Checks if the value is equal to the specified condition.
Not Equal	string/number	Checks if the value is not equal to the specified condition.

Query weather

Depending on the user utterance, there are two possible replies:

• Reply with the weather information or
• Ask the user for the location

If the user utterance doesn’t contain the location information (At this point we can use Reply Conditions to detect), the bot needs to ask the user:

• I’m having trouble understanding the location you mentioned. Can you give me the name of the city or area one more time?

In this case, we can extract city to determine the location.

Set Reply Conditions

• Click Reply Conditions
• Select Slot Name with city
• Select Is Bot Empty to Conditional Type

This means that the bot will reply when city has a value

You can set the condition of asking for the location:

• Click Reply Conditions
• Select Slot Name with city
• Select Is Empty to Conditional Type

This reply will be delivered when there is no value for city.

Tips

The slot value can be used to guide the dialog flow to different branches.