user: Question: How many air dates are there for production code 206?
Columns: ['Series no.', 'Season no.', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production Code']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'real']
Sample row: [38.0, 1.0, '"A House Is Not a Home"', 'Tyler Perry', 'Michelle L. Johnson', 'December5,2007', 201.0]
SQL:

assistant: SELECT COUNT("Original air date") FROM "Table" WHERE "Production Code" = 206.0;