The conversation between human and AI assistant.
[|Human|] Which NFL teams have gone to the Super Bowl at least once but have never won a Super Bowl title?
[|AI|] Buffalo Bills, Minnesota Vikings, Cincinnati Bengals, Atlanta Falcons, Carolina Panthers, Houston/Tennessee/Oilers/Titans, San Diego/Los Angeles Chargers, St. Louis/Phoenix/Arizona Cardinals
[|Human|] 
Which NFL teams have gone to the Super Bowl at least once but have never won a Super Bowl title?