You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Samuel Wilson, help me to cancel my ticket as my meeting is cancelled.

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

USER: Sure.

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

USER: Ok, thank you for the details.

ASSISTANT: Thank you for opting us.