user: Question: What is the highest number in attendance against the game at Kansas City Chiefs?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 16, 1973', 'at Minnesota Vikings', 'L 24–16', 44818.0]
SQL:

assistant: SELECT MAX("Attendance") FROM "Table" WHERE "Opponent" = 'at Kansas City Chiefs';