user: Question: What is the Date of the Ameritech Senior Open?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Oct 6, 1996', 'Ralphs Senior Classic', '−11 (68-68-66=202)', '1 stroke', 'Jim Colbert , Chi-Chi Rodríguez']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Tournament" = 'Ameritech Senior Open';