user: Question: Who wrote the episode originally aired on September 29, 1999?
Columns: ['Series #', 'Title', 'Directed by', 'Written by', 'Original air date', 'Prod. code']
Types: ['text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['75 (1)', '"My Spy"', 'Don Scardino', 'Becky Mode Tom Straw', 'September 29, 1999', 401.0]
SQL:

assistant: SELECT "Written by" FROM "Table" WHERE "Original air date" = 'September 29, 1999';