You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Christine Mitchell. I want to cancel my recent reservation due to health issues, can you please help me with that?

ASSISTANT: Sure, I am oblige to help you with that. Please be on hold to check your previous reservation.

USER: Sure.

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

USER: No problem, thank you.

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