user: Question: Name the date for visiting team of Denver Broncos
Columns: ['Date', 'Visiting Team', 'Final Score', 'Host Team', 'Stadium']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['September 11', 'Indianapolis Colts', '24-7', 'Baltimore Ravens', 'M&T Bank Stadium']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Visiting Team" = 'Denver Broncos';