There were several ways to go about this. One involved beating the living hell out of him until he gave her some information. The other involved playing along long enough to get some information, and failing to be useful, turning him into a snack, THEN making him tell. Jazz opted for the second option. Mostly due to being hungry.
Jazz smiled sweetly, taking care not to show her fangs then tipped a wink at him. "My name's Lucy, sugar, and mind tellin' me your name as well?"
Jazz mentally yoinked the name from her best friend from when she was growing up. His name was Ben, but he had a pet chocobo named Lucifer. Damned meanest chocobo ever. But it's full name was never used, so everyone ended up calling it Lucy. The reference made Jazz almost giggly, but she bottled it up, in hopes the young hooligan would take the bait.