user: Question: Who is the visitor of the game on March 7?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Record']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['October 7', 'New York Islanders', '1–5', 'Edmonton Oilers', '1–0–0']
SQL:

assistant: SELECT "Visitor" FROM "Table" WHERE "Date" = 'March 7';