user: Question: What's the shortest length from north klondike highway that has a length less than 326?
Columns: ['Name', 'Number', 'From', 'Length (km)', 'Length (mi)']
Types: ['text', 'real', 'text', 'real', 'real']
Sample row: ['Alaska Highway', 1.0, 'Towards Fort Nelson, BC', 957.15, 594.75]
SQL:

assistant: SELECT MIN("Length (km)") FROM "Table" WHERE "Name" = 'north klondike highway' AND "Length (mi)" < 326.0;