You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Due to heavy rains at my destination airport, my cricket match has been cancelled. So can you help me to change my reservation.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Suddenly I have changed my decision, Please cancel my reservation. Frank Davis.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no active reservation on your name to cancel.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for choosing us.