user: Question: What is the date of the game when the venue is Princes Park?
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', '7.12 (54)', 'Melbourne', '9.14 (68)', 'Windy Hill', 8000.0, '30 June 1945']
SQL:

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