You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you now?

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

ASSISTANT: Sure, may I know your name please?

USER: I am Justin Brown.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: You are welcome.