user: Question: When was the game played against a visiting team from Philadelphia?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Record']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['October 5', 'Pittsburgh', '3 - 3', 'New Jersey', '0-0-1']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Visitor" = 'Philadelphia';