When responding to an angry parent, it's important to use empathetic and calming language. Here are some actual responses you can use:

1. "I understand that you're upset, and I'm here to help. Can you please share what's been bothering you, so I can better assist you?"

2. "I'm really sorry to hear that you're feeling this way. Let's work together to find a solution that addresses your concerns."

3. "Thank you for bringing this to my attention. I take your concerns seriously, and I want to make sure we resolve this issue."

4. "I apologize for any inconvenience this has caused you. Let's figure out how we can make this right."

5. "I appreciate your feedback, and I'm committed to improving your experience. How can we work together to find a resolution that satisfies you?"

6. "I hear your frustration, and I'm here to assist. Let's discuss what steps we can take to resolve the situation to your satisfaction."

7. "I'm sorry you've had a negative experience. We value your feedback, and I'll do my best to ensure this doesn't happen again in the future."

8. "I understand your concerns, and I want to make things better for you. Let's explore options to address this issue."

Remember to maintain a calm and composed demeanor while using these responses to defuse tension and work toward a resolution with the angry parent.