You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Kathrine Anderson here. I want to cancel my reservation today due to health issues. Can you help me?

ASSISTANT: Sure, I will help you with that.

USER: Ok, please check with my booking. I will be waiting for your response.

ASSISTANT: Sure.

USER: Thank you for your positive response.

ASSISTANT: We regret to inform you that there is no reservation found on your name in our records.

USER: Oh! That's fine. Thank you for checking anyways.

ASSISTANT: Thank you for reaching us, hope you have a great day.