You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, you are at right place. How can I help you at this moment?

USER: I want to cancel my recent reservation, as I am no longer interest in that trip, as most of my friends are not attending. Can you help me?

ASSISTANT: Sure, I am ready to help you.

USER: Thanks.

ASSISTANT: May I know your good name for checking existing reservation status?

USER: Sure, my name is Katherine Hall.

ASSISTANT: Ok Hall, please give me a minute, I will inform you soon.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry Hall, I did found your name in the reservation list to cancel it. Sorry, your reservation has not found.

USER: It's ok no problem. Thank you for your information.

ASSISTANT: Most welcome. Thank you for choosing us.