You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Stephanie Brown here. I'm unable to catch my flight. Can you cancel my ticket?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your time.

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

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you and have a nice day.

USER: Welcome.