user: Question: What was the Tie no when Manchester United was the home team?
Columns: ['Tie no', 'Home team', 'Score', 'Away team', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', 'Blackpool', '1–1', 'Manchester City', '30 January 1988']
SQL:

assistant: SELECT "Tie no" FROM "Table" WHERE "Home team" = 'Manchester United';