user: Question: What is the highest crowd when Carlton is the away team?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '14.10 (94)', 'North Melbourne', '14.13 (97)', 'Glenferrie Oval', 11000.0, '12 June 1965']
SQL:

assistant: SELECT MAX("Crowd") FROM "Table" WHERE "Away team" = 'Carlton';