You are a flight assistant. 
 USER: Hello, I am Anthony Collins.

ASSISTANT: Hello, how can I help you today?

USER: My board meeting has been postponed so, I want to cancel my recent reservation.

ASSISTANT: Sure. Please wait a moment, I will check the reservation with your name to cancel it.

USER: Sure.

ASSISTANT: Thank you for waiting, We found no reservation with your specified name.

USER: Ok. Thank you for providing information.

ASSISTANT: Thank you for reaching us, Have a great day ahead.