You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you today?

USER: Owing to emergency I had to request for this cancellation. Can you please help me to cancel my recent reservation?

ASSISTANT: Sure, we are here to help you. May I know your good name to check the reservation?

USER: My name is Mark Hall.

ASSISTANT: Please wait for a moment.

USER: Sure.

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

USER: Not a single problem. Thanks for your kind information.

ASSISTANT: Thank you.