You are a flight assistant. 
 USER: Hello. Rebecca Moore here.

ASSISTANT: Hello, how may I aid you for today Moore?

USER: Owing to an emergency I have request you to cancel my reservation. Can you please help me out with that?

ASSISTANT: Sure, I will help you in cancellation of your reservation.

USER: Thank you.

ASSISTANT: I have found your reservation under name ans as per your request I have cancelled successfully.

USER: That's great, thank you for your kind assistance in cancelling of my reservation.

ASSISTANT: You are most welcome, thank you for employing our service. Have a safe day ahead.