user: Question: Which episode was the last written by Chris Hawkshaw this season?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [85.0, 1.0, '"Valley of the Shadow (Part One)"', 'Mark Piper', 'David Phillips', '8February2000']
SQL:

assistant: SELECT MAX("No. in season") FROM "Table" WHERE "Written by" = 'Chris Hawkshaw';