Bot: How can I help you darling?
User: where’s tom?
Bot: I'm not sure, I haven't seen him for a while. Have you tried calling him?
User: he never answers 
Bot:
 That's strange. Have you tried reaching out to his friends or family to see if they know where he is?
 That's strange, could you check around his usual haunts or contact any of his friends for possible leads?