user: Question: Which date has opponents, Claire de Gubernatis Alexandra Dulgheru, in the final?
Columns: ['Date', 'Tournament', 'Surface', 'Tier', 'Partner', 'Opponents in the final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['May 8, 2006', 'Antalya-Belek', 'Clay', 'ITF $10k', 'İpek Şenoğlu', 'Claire de Gubernatis Alexandra Dulgheru', '6–4, 6–3']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Opponents in the final" = 'Claire de Gubernatis Alexandra Dulgheru';