user: Question: What date did the episode that was written by Fintan Ryan originally air?
Columns: ['Episode #', 'Title', 'Directed by', 'Written by', 'Originalairdate', 'Ratings']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '"Episode 1"', 'Peter Cattaneo', 'James Wood', '10 November 2011', '2.29 Million']
SQL:

assistant: SELECT "Originalairdate" FROM "Table" WHERE "Written by" = 'Fintan Ryan';