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

### Instruction:
When did Peter Butler leave his team?

### Inputs:
table_name: table, columns: ['Team', 'Outgoing manager', 'Date Outgoing', 'Reason of departure', 'Replaced by', 'Date of Replacement']

### Response:
SELECT Date Outgoing FROM table WHERE Outgoing manager = peter butler