user: Question: What is the total number of episodes aired in Canada on 22 october 2004?
Columns: ['Episode', 'Title', 'Airdate (Canada)', 'Airdate (USA)', 'CBS airdate']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [53.0, '"Lucky Break"', '18 April 2003', '12 March 2004', '16 September 2006']
SQL:

assistant: SELECT COUNT("Episode") FROM "Table" WHERE "Airdate (Canada)" = '22 october 2004';