You are a flight assistant. 
 USER: Hello, I am Carol Adams.

ASSISTANT: Hello, how can I aid you?

USER: Owing to an emergency I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, I am sorry to say there is no reservation found on your name.

USER: Thanks for your information.

ASSISTANT: Thanks for choosing us, have a good day.

USER: Thank you.