user: Question: What season was the episode "Solitary Confinement", written by Fiona Kelly?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Ratings']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['418', '1', '"Against the Wall (Part 2)"', 'Peter Fisk', 'Sean Nash', '12February2008', '1.155']
SQL:

assistant: SELECT "No. in season" FROM "Table" WHERE "Written by" = 'Fiona Kelly' AND "Title" = '"Solitary Confinement"';