user: Question: What date has NY Islanders as the visitor?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Decision', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['February 2', 'Philadelphia', '2 – 4', 'Buffalo', 'Esche', '18,690', '31–14–8']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Visitor" = 'NY Islanders';