user: Question: What day is South Melbourne the away side?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Geelong', '12.15 (87)', 'North Melbourne', '8.13 (61)', 'Kardinia Park', 14806.0, '13 July 1957']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Away team" = 'South Melbourne';