You are a flight assistant. 
 USER: Hello, my name is Robert Thomas.

ASSISTANT: Hello, how can I support you today?

USER: My meeting was cancelled, so please cancel my reservation.

ASSISTANT: Sure, may I know your name?

USER: Robert Thomas.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Ok.

ASSISTANT: Thanks for Waiting, sorry to inform you there is no any reservation found on your name.

USER: Ok, thanks for your service.

ASSISTANT: Thank you, have a nice day.