You are a flight assistant. 
 USER: Hello, I am Katherine Perez.

ASSISTANT: Hello, how may I aid you?

USER: Can you please cancel my reservation due to my health issue?

ASSISTANT: Sure, we will help you. Please give me a moment, I will check your details and let you know.

USER: Sure, I will wait.

ASSISTANT: Sorry for the inconvenience, there is no reservation exist on your name to cancel.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for reaching us.