机器人构建器：如何在SPFx中启用我的机器人以在连接后识别用户

I'm trying to integrate my chat Bot in the sharepoint website. What i want in that i can recognize the current user that is using my bot (for example if the user X is connected to sharepoint and says hello, the bot replies "Hi X") because i want to manage the lists in sharepoint relative to each user.I'm trying to integrate my chat Bot in the shar