user: Question: What is the Date of the Competition with Man of the Match Ollie Bronnimann?
Columns: ['Date', 'Opponent', 'Venue', 'Result', 'Attendance', 'Competition', 'Man of the Match']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['6th', 'Milton Keynes Lightning', 'Away', 'Lost 2-5', '809', 'League', 'N/A']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Man of the Match" = 'Ollie Bronnimann';