You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, may I know your name?

USER: My name is John Evans.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

USER: Not a problem, thanks for checking.

ASSISTANT: Thanks for reaching us.