You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Nancy Davis here. My concert is cancelled because of heavy rainfall. Can you cancel my ticket?

ASSISTANT: Sure, Please wait for a while to check your reservation details.

USER: Sure, take your time.

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

USER: It's fine. Anyway, thank you for searching.

ASSISTANT: Is there anything else I can help you with?

USER: No, thanks.

ASSISTANT: Thank you and have a nice day.