title: How to extract special information from Watson Assistant (Conversation)?
body: <p>I have the user input <code>"What is the hostname of serial GX0211229342?"</code>. The serial can be a numeric or alphanumeric mix (e.g. 7842344 or H52WBD1 etc).</p>
  
  <p>How can I extract GX0211229342 from the sentence and set it into context in Watson assistant (Watson Conversation)?</p>