You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, may I know your name?

USER: Myself Betty Lopez.

ASSISTANT: Wait a minute.

USER: Ok.

ASSISTANT: Sorry, there was no reservation found on your name.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.