user: Question: What is the Opponent in the final with an outcome of Winner on 14-May-2007?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent in the final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', '24-Oct-2005', 'Pretoria', 'Hard', 'Alicia Pillay', '6-4 6-2']
SQL:

assistant: SELECT "Opponent in the final" FROM "Table" WHERE "Outcome" = 'Winner' AND "Date" = '14-May-2007';