Dialogflow integration issue

Hi,

In my application I have added one dialogflow chat window in one of the interface using a!webContentField() field. Purpose of which is: Given an ORDER ID it will return associated to that order, if the order is for the logged in user. I am maintaining a table for orders (which consists of order Id, order details and user id) in Appian database. Now, in dialogflow I am putting one service account API key from appian, in tern dialogflow calls Appian to retrive the details. Now, the issue is, I cannot capture the details of logged in user in the dialogflow, hence cannot validate if the order is for logged in user or not. If anyone having a way out please do reply. TIA.