AWS LEX

Question

Hi all,  
I have a requirement. While I am serving an intent in LEX, if I type utterence of other matching intent, LEX is calling the latter intent. Instead I need to ask for confirmation like ' Do you quit existing service {intentName}?'  
  
How this can be achieved?

Answer

Hi Devaki,  
   
The behaviour you are expecting can be achieved by responding with **ConfirmIntent dialogAction** from your Initialization and validation code hook Lambda.  
One of the ways to achieve this is by checking if the previous intent is completed, by looking at the **fulfillmentState** of the first intent in the list of **recentIntentSummaryView** in the event received by lambda.  
If the **fulfillmentState** on this intent is not of these: Fulfilled, Failed or ReadyForFulfillment. It means that the intent was not completed and user tried to switch intents.  
   
At this point, you can respond back with **ConfirmIntent** to confirm if your customer really want to switch the intents.  
Here is an pseudo code showing how this can be achieved:

```
previousIntent = event[“recentIntentSummaryView”][0]
 
if previousIntent[“fulfillmentState”] != “Fulfilled” && previousIntent[“fulfillmentState”] == “Failed” && previousIntent[“fulfillmentState”] == “ReadyForFulfillment” {
                // previous intent is not completed, user is trying to switch intents mid conversation
}
```

AWS LEX

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