user: Question: What is the Tie no for Away Team Ipswich Town?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Nottingham Forest', '3–3', 'Ipswich Town', '7 March 1981']
SQL:

assistant: SELECT "Tie no" FROM "Table" WHERE "Away team" = 'Ipswich Town';