You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Carter.

ASSISTANT: How may I help you today?

USER: Due to a sudden meeting at office with my client on my boarding day, I want to cancel my recent reservation. Can you please help me in that?

ASSISTANT: Sure, I am blissful to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is no reservation found on your name in our database to cancel it.

USER: That's ok, not a problem. Thanks for your information.

ASSISTANT: Thank you for availing us.