You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Due to some personal issues, I couldn't travel to California. Can you please cancel my reservation?

ASSISTANT: Sure, may I know your name?

USER: My name is Anna Evans.

ASSISTANT: Sorry, no reservation found on your name.

USER: Its ok, thank you for the information.

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