user: Question: Who was the Visitor when the Home team was Anaheim on the Date of April 12?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Decision', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['April 10', 'Dallas', '4 – 0', 'Anaheim', 'Turco', 17191.0]
SQL:

assistant: SELECT "Visitor" FROM "Table" WHERE "Home" = 'Anaheim' AND "Date" = 'April 12';