You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself Betty Walker. I want to cancel my reservation, because of some problems, can you help me?

ASSISTANT: Sure, please allow me a minute.

USER: Ok.

ASSISTANT: Sorry, no reservation found with your name.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you.