user: Question: What is the production code for the episode whose original air date was May15,2000?
Columns: ['Series #', 'Season #', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [67.0, 1.0, '"The Tattle Tale Heart"', 'Burt Brinckerhoff', 'Brenda Hampton', 'September20,1999', '3.47']
SQL:

assistant: SELECT "Production code" FROM "Table" WHERE "Original air date" = 'May15,2000';