You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Sharon Roberts. I just need your help in cancelling my recent reservation.

ASSISTANT: Sure, I am here to help you out.

USER: Ok.

ASSISTANT: Please wait a moment to check the reservation on your name.

USER: Ok.

ASSISTANT: Sorry Sharon, no reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.