Limit the scope of agent

[ZidongWang123]

Feature: Limit the scope of agent

  Scenario: The Agent responds to users' query
    When the the user sends a query to agent
    Then the scope of response from agent should be limited, if the query is unrelated to the function fo the agent, then the agent should 
    response with e.g. "Please ask me about the exercises"
    and what to show to users also need to be restricted , like  when user ask about content of conductor files, never show the initial 
    exercises, but only the conductor files without solutions.