user: Question: What Date has a Mach of 0.662?
Columns: ['Vehicle Flight #', 'Date', 'Pilot', 'Mach', 'Velocity (km/h)', 'Altitude (meters)', 'Duration']
Types: ['text', 'text', 'text', 'real', 'real', 'real', 'text']
Sample row: ['M2-F2 #1', 'July 12, 1966', 'Thompson', 0.646, 727.0, 13716.0, '00:03:37']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Mach" = 0.662;