You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you now?

USER: Please cancel my preciously booked ticket as budget was very high for our planned trip. Can you please check the reservation by this name Rebecca Lopez?

ASSISTANT: Sure, I can cancel you reservation right now. Please wait for a while.

USER: Ok.

ASSISTANT: Unfortunately, there is no reservation found on your name to cancel.

USER: That's ok, thanks for your information.

ASSISTANT: Thanks for approaching us, have a nice day.