user: Question: What date shows the Outcome of Winner against Nikola Fraňková Carmen Klaschka?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Partner', 'Opponents in the final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', '17 March 2007', 'Cairo', 'Clay', 'Zuzana Kučová', 'Melissa Berry Michelle Gerards', '6–7 (3) 6–4 6–3']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Outcome" = 'Winner' AND "Opponents in the final" = 'Nikola Fraňková Carmen Klaschka';