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

### Instruction:
The astronaut who was 37y 8m 4d when making a first step on the moon was in which service?

### Inputs:
table_name: table, columns: ['Name', 'Born', 'Age at first step', 'Mission', 'Lunar EVA dates', 'Service']

### Response:
SELECT Service FROM table WHERE Age at first step = 37y 8m 4d