You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Nancy Wright. Can you help me in changing my recent reservation?

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: Just give a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation on your name in our database.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.