You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, May I know your name?

USER: Ruth Hill.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: That's ok. Anyways, thank you.

ASSISTANT: Thank you for opting us.