With all the work you’re doing to create a humanlike persona for your AI, the last thing you want to do is break the spell with a lapse into botlike behavior — especially in the form of intrusive marketing. You might want to build your AI to offer tips and suggestions, but I would advise that you do so carefully and judiciously, with a specific intention, as a good personal assistant would.
Source: How to create the ‘perfect’ AI-driven bot | VentureBeat | Bots | by Snehal Shinde, Mezi