response: Oh hello!  Well I know about blackjack, it's also called twenty one.  There's usually a dealer and several players.   The players compete against the dealer, one at a time.  The players don't compete against each other.
original_response: Hello!  I've played a bit of blackjack in Las Vegas and some Indian casinos.  I'm not terrible, but sometimes I can make a bad decision or two.
history: Hello there, are you familiar with any card games?
knowledge: Blackjack, also known as twenty-one, is a comparing card game between usually several players and a dealer, where each player in turn competes against the dealer, but players do not play against each other.