user: Question: What is the transfer fee for Jimmy Gibson?
Columns: ['Nat.', 'Name', 'Moving to', 'Type', 'Transfer window', 'Transfer fee']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['NOR', 'Dan Eggen', 'Free Agent', 'End of contract', 'Summer', 'n/a']
SQL:

assistant: SELECT "Transfer fee" FROM "Table" WHERE "Name" = 'Jimmy Gibson';