user: Question: On what weekday was the match that had Perth Glory as the away team?
Columns: ['Attendance', 'Round', 'Date', 'Home', 'Score', 'Away', 'Venue', 'Weekday', 'Time of Day']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [44560.0, 'Grand Final', '20 March 2010', 'Melbourne Victory', '1 – 1', 'Sydney FC', 'Etihad Stadium', 'Saturday', 'Evening']
SQL:

assistant: SELECT "Weekday" FROM "Table" WHERE "Away" = 'Perth Glory';