You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My business meeting has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Sure, may I know your name?

USER: I am Anna Carter.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Not an issue. Anyways, thank you for the information.

ASSISTANT: Thanks for reaching us, have a good day.