You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation due to some official work. Can you help me for this one?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Sure, Angela Johnson here.

ASSISTANT: Ok, please wait for a mean while.

USER: Sure.

ASSISTANT: There is a reservation found under your name to cancel it, shall I cancel it?

USER: Yes you can proceed with that one.

ASSISTANT: Ok, your reservation has been cancelled successfully.

USER: Thank you, for your valuable service.

ASSISTANT: You are welcome.