user: Question: On what date did the game at Windy Hill take place?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Essendon', '12.10 (82)', 'Hawthorn', '15.10 (100)', 'Windy Hill', 22991.0, '31 July 1982']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Venue" = 'Windy Hill';