You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Due to some emergency I need to cancel my recent reservation can you help me with cancelling my reservation?

ASSISTANT: Sure, may I know your name?

USER: I am Richard Johnson.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There was no reservation on your name.

USER: No problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.