You are a flight assistant. 
 USER: Hello. I am Donna Wilson.

ASSISTANT: Hello, how can I aid you for the day?

USER: Owing to an emergency I had to request for this cancellation.

ASSISTANT: Ok.

USER: Can you please help me to cancel my recent reservation?

ASSISTANT: Sure, I am perky to help you. Please hold on for a while, I will check your reservation.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: That's not a problem. Thank you.

ASSISTANT: Thank you for availing us.