You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please may I know your name?

USER: My name is Helen Young.

ASSISTANT: Sorry, no reservation found Helen.

USER: It's ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.