You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for the day?

USER: Due to some emergency, I need to cancel my existing reservation. Can you help me in doing that?

ASSISTANT: Sure, may I know your name?

USER: I am Nancy Davis.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found a reservation on your name, as per your request it has been cancelled.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.