Google actions slot filling, if one variable in some case already filled ask for next slot or process intent

[developershyam]

[developershyam]

I am using webhook implementation with request response in java.

Suppose I have three variable as required A_1, A_2, and A_3. But in some cases I have value for A_2.

So I want A_1 and A_3 only variable capture.

How to tell in response while getting A_1 I also have A_2, so next it should ask only for A_3