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

### Instruction:
Which episode had celebrities Nick Hewer and Saira Khan in them?

### Inputs:
table_name: table, columns: ['Episode', 'Stage', 'Celebrities', 'Directed and produced by', 'Original airdate', 'Viewers (overnight estimates)']

### Response:
SELECT Episode FROM table WHERE Celebrities = Nick Hewer and Saira Khan