You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I met with an accident recently. So, I would like to cancel my recent reservation. Can you help me?

ASSISTANT: Sad to hear, may I know your name please?

USER: My name is Melissa Hill.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Hill, there is no active reservation has been found on your name.

USER: That's fine, anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.