user: Question: What was the date of the game at MCG?
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', '14.20 (104)', 'Melbourne', '9.6 (60)', 'Windy Hill', 15411.0, '8 August 1981']
SQL:

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