title: is it possible to send message to specific user on facebook messenger in android
body: <p>i've to implement the scenario described below</p>
  
  <p>for example</p>
  
  <blockquote>
    <p>app allows users to login through facebook in app. now in app  i want
    to select any register user(from all users) and send message directly
    from app to that specific person in facebook messenger automatically.
    without going into messenger app</p>
  </blockquote>
  
  <p><strong>is it possible in android or not ?</strong></p>
  
  <p>if it is possible then <strong>please guide me how can i implement this. ?</strong></p>
  
  <p>thanks</p>