You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: May I know your name?

USER: Sure, my name is Shirley Wilson.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: Ok, no problem. Thank you for helping me.

ASSISTANT: Thank you for choosing us.