You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Anna Carter.

ASSISTANT: How may I help you today?

USER: Can you help me in cancelling my reservation?

ASSISTANT: Sure, I will help you with cancelling your ticket, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for your time, there is no flight reserved with your name to cancel it.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Welcome, have a good day.