You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation, due to my seminar has been cancelled. Can you help me with that?

ASSISTANT: Sure, may I know your name for the cancellation process?

USER: Sure, you can check the reservation on the name of Patricia Green.

ASSISTANT: Thank you for providing your name, please be on hold.

USER: Sure.

ASSISTANT: We found a reservation in your name and it has been cancelled.

USER: Thanks for your help.

ASSISTANT: Thank you for opting our service.