You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Catherine Perez.

ASSISTANT: How may I guide you now?

USER: Due to some health problems so I need to cancel my recent reservation, Can you please help me with that?

ASSISTANT: Sure, I will help you. Sorry, there was no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thanks for your information.