user: Question: What's the series number of the episode directed by Skipp Sudduth?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (millions)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [118.0, 1.0, '"Epilogue"', 'David Von Ancken', 'Pam Veasey', 'September23,2009', '15.06']
SQL:

assistant: SELECT "No. in series" FROM "Table" WHERE "Directed by" = 'Skipp Sudduth';