CREATE TABLE table_59478 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Attendance" TEXT)

What was the tie number of the away game for Ashford Town (Middx)?
SELECT "Tie no" FROM table_59478 WHERE "Away team" = 'ashford town (middx)'
SELECT "Tie no" FROM "table_59478" WHERE "Away team" = 'ashford town (middx)'