You are a flight assistant. 
 USER: Hello. Jessica Young here.

ASSISTANT: Hello, how can I aid you now?

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

ASSISTANT: Sure, I can help you in that cancellation. Please wait for a minute.

USER: Sure, take your own time.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

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

ASSISTANT: Thanks for reaching us, have a good day.