title: Dialogflow - Get answer to security question
body: <p>I am building an agent that will initiate a conversation with a caller.  After asking basic information the agent will need to get a security phrase or secret from the caller to establish they are who they say they are.</p>
  
  <p>I cannot get the agent to capture the answer after the agent asks, "what is your security phrase".</p>
  
  <p>Any ideas or suggestions?</p>