Customer service can be stressful at times, especially in intense situations. This behavioral question is layered, and your answer will offer a meaningful glimpse into your personality and skills. Not only is the interviewer trying to get an idea of who you are, but also of your communication skills. They want to evaluate how adept and effective you are at diplomacy, mediation, and negotiation, attending to your clients' needs with transparency and integrity while working swiftly towards a communal end goal. Soft people skill and the ability to non-defensively communicate with a wide range of personalities are key here. Exhibit your non-defensive communication skills. Showcase your active listening skills and ability to mirror what was communicated while offering an example where you've applied these or other effective communication tools in a situation where you had to deliver bad news to a customer. Even when that may not be enough, you've at least exhibited that you performed at your best with what you had to work with, acted with integrity, and used every tool at your disposal to deliver the best customer service you could, given the circumstances.