You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: I am Barbara Brown, Owing to a emergency I want to cancel my recent reservation. Will you help me in cancelling my ticket? 9.

ASSISTANT: Ok, I will help you, please wait a minute, I will revert you back with some information.

USER: Sure.

ASSISTANT: Thanks for waiting, I have gone through the reservation list, we could not find your name to process cancellation.

USER: Ok, no problem.

ASSISTANT: Thanks for reaching us, Have a nice day.

USER: Thank you for your information.