You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Virginia Taylor.

ASSISTANT: How can I help you?

USER: Suddenly, My boss changed the business meeting to Orlando.

ASSISTANT: Ok. Can you tell me your source and destination codes?

USER: Could you change my reservation?

ASSISTANT: Ok. Sure. Sorry Virginia Taylor, there is no reservation in my records.

USER: It's ok.

ASSISTANT: Thank you.

USER: Thank you for providing details.