Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Who is the away team for the tome team Leeds United, at the League Cup Competition?

### Inputs:
table_name: table, columns: ['Date', 'Home team', 'Score', 'Away team', 'Venue', 'Competition']

### Response:
SELECT Away team FROM table WHERE Home team = leeds united AND Competition = league cup