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

### Instruction:
Which Commenced operations have an Airline of valuair?

### Inputs:
table_name: table, columns: ['Airline', 'IATA', 'ICAO', 'Callsign', 'Commenced operations']

### Response:
SELECT MAX Commenced operations FROM table WHERE Airline = valuair