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

### Instruction:
What date was the location attendance at&t center 18,797, and a game earlier than 57?

### Inputs:
table_name: table, columns: ['Game', 'Date', 'Team', 'Score', 'High rebounds', 'High assists', 'Location Attendance', 'Record']

### Response:
SELECT Date FROM table WHERE Location Attendance = at&t center 18,797 AND Game < 57