You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I  assist you today?

USER: Amanda Hernandez here. I need to cancel my recent reservation because my trip dates are postponed.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment. Thank you for your valuable time, we have found a reservation on your and cancelled successfully.

USER: Sure, take your own time.

ASSISTANT: Amount will refund to your registered bank account within 3 working days.

USER: Thank you for cancelling my reservation.

ASSISTANT: Thank you for availing us.