You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, In what way I can help you?

USER: Owing to an emergency, I want to cancel my reservation. Can you help me out?

ASSISTANT: Sure, I am here to help you? May I know your name please?

USER: Sure, my name is Karen Lewis.

ASSISTANT: Thanks for providing your name, please wait for a while.

USER: OK.

ASSISTANT: Thanks for being patient, but there is no reservation found for you.

USER: That's ok, thank you.

ASSISTANT: Thanks for reaching us.