You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Carol Parker, I want to cancel my ticket as my plan to visit my friend is cancelled. Can you help me with that?

ASSISTANT: Sure, we are here to help you. Please hold a moment, let me check your reservation and let you know.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, no reservation found with your name.

USER: Ok, thank you.

ASSISTANT: Thank you for approaching us.