如何在使用botframework的luisaction绑定的同时保持privateConversation数据?

我跟着这个 ,用在我的机器人。 有一件事我不明白是如何坚持用户数据。

例如:

user: what is my status? bot: could you provide your id? user: its xxx bot: its in so and so stage. 

现在如果用户提出同样的问题机器人不应该要求身份证(应直接回答)

  user: what is my current status? bot: what is your id? <--------- this is not expected of the bot.