user: Question: Name the original airdate for Mr. Buckston
Columns: ['Episode title', 'Villain(s)', 'Identity(ies)', 'Original airdate', 'DVD volume']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['"A Bicycle Built For Boo!"', 'The Green Ghost', 'Mr. Conrad', 'September 10, 1988', 1.0]
SQL:

assistant: SELECT "Original airdate" FROM "Table" WHERE "Identity(ies)" = 'Mr. Buckston';