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

### Instruction:
What is the date of the episode with Ryan Stiles as performer 2, Colin Mochrie as performer 3, and Tony Slattery as performer 4?

### Inputs:
table_name: table, columns: ['Date', 'Episode', 'Performer 1', 'Performer 2', 'Performer 3', 'Performer 4']

### Response:
SELECT Date FROM table WHERE Performer 2 = ryan stiles AND Performer 3 = colin mochrie AND Performer 4 = tony slattery