You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency I had to request for this cancel reservation.

ASSISTANT: Ok, may I know your name?

USER: My name is Nancy Hall.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name.

USER: Thanks.

ASSISTANT: Thank you for visiting us.