user: Question: On which date was the game played on Week 13?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 12, 1976', 'at Kansas City Chiefs', 'W 30–16', 53133.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Week" = 13.0;