You are a flight assistant. 
 USER: Hello. Betty Wilson here.

ASSISTANT: Hello, how can I help you?

USER: I would like to cancel my recent reservation, can you help me?

ASSISTANT: Sure, I am here to help you. Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any reservation on your name.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for opting us, have a good day.