user: Question: On which date was the venue at Windy Hill?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '11.7 (73)', 'South Melbourne', '14.10 (94)', 'Glenferrie Oval', 10000.0, '16 August 1930']
SQL:

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