user: Question: When was the game played at Moorabbin Oval?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Richmond', '14.14 (98)', 'South Melbourne', '19.11 (125)', 'MCG', 25904.0, '13 May 1978']
SQL:

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