user: Question: When was the tournament of Bologna?
Columns: ['Date', 'Tournament', 'Surface', 'Opponent', 'Score']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['17 May 2004', 'Verona', 'Clay', 'Alex Vittur', '6–1, 7–6']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Tournament" = 'Bologna';