You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I'm Carolyn Scott.

ASSISTANT: Thanks for providing your name.

USER: I had planned to meet my friend in New York, but it was postponed. I am looking for change of my recent reservation. Can you help me?

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

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry to inform you that there is no reservation found on your name.

USER: That's not a problem. Anyways, thank you for your help.

ASSISTANT: Thanks for connecting with us, have a great day.