user: Question: Who was the visiting team on December 6?
Columns: ['Date', 'Visiting Team', 'Final Score', 'Host Team', 'Stadium']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['September 6', 'Oakland Raiders', '8-28', 'Kansas City Chiefs', 'Arrowhead Stadium']
SQL:

assistant: SELECT "Visiting Team" FROM "Table" WHERE "Date" = 'December 6';