You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: May I know your name?

USER: My name is Brandon Lee.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER:      That's ok, thank you for the response.

ASSISTANT: Thank you.