You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of assistance you are looking for?

USER: Owing to an emergency, I need to cancel my existing reservation.

ASSISTANT: Ok.

USER: Can you help me with it?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name to check the reservation?

USER: I am Gary Hill.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is no reservation found on your name.

USER: It's ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for approaching us.