How would you define good customer service?
When possible, research the company's values. In general, good customer service involves the satisfactory resolution of a customer's issue in a timely fashion. State your definition and give a brief example of the outcome that you think meets that definition.
"I think that good customer service exceeds the customer's expectations in both quality of service and the speed that the service is delivered. For example, a customer might be unhappy and is trying to get a refund. We want to make sure that they spend more time being happy than unhappy. So I need to make sure that the customer is taken care of quickly. I need to apologize to them and give them something in return for the bad experience, like a gift certificate."