You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to cancel my flight reservation as my trip got postponed, can you please help me?

ASSISTANT: Sure, may I know your name?

USER: I am Pamela Robinson.

ASSISTANT: Please hold a moment, let me check the details for cancellation.

USER: Sure, take your own time.

ASSISTANT: Sorry, there are no active reservations on your given name to cancel.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching our service.