You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Nancy Moore, I would like to change my recent reservation because of some personal work, can you help me with this?

ASSISTANT: Sure, please wait a moment.

USER: Take your own time.

ASSISTANT: Sorry to say, no reservation found with your name.

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

ASSISTANT: Thanks for opting us.