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

### Instruction:
Which date has an Outcome of runner-up, and an Opponent in the final of gilles simon?

### Inputs:
table_name: table, columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent in the final', 'Score in the final']

### Response:
SELECT Date FROM table WHERE Outcome = runner-up AND Opponent in the final = gilles simon