user: Question: What date did de Vries start?
Columns: ['No.', 'P', 'Name', 'Country', 'Age', 'Loan Club', 'Started', 'Ended', 'Start Source', 'End Source']
Types: ['real', 'text', 'text', 'text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [24.0, 'DF', 'Clapham', 'ENG', 31.0, 'Wolverhampton Wanderers', '20 August', '20 November', 'BBC Sport', 'Leeds United']
SQL:

assistant: SELECT "Started" FROM "Table" WHERE "Name" = 'de Vries';