You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, I can cancel your reservation right now. Before that I need to know your good name please?

USER: Sure, Katherine Phillips here.

ASSISTANT: Thanks for providing your name. Please allow me a moment to check for the previous reservation in our data base.

USER: Sure, take your time.

ASSISTANT: Thanks for remaining so positive, we are sorry to say that there is no active reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thanks for approaching us, wish a happy day.