You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: My parents arrived to my home so, I would like to postpone my meeting. Can you help me in changing the existing reservation?

ASSISTANT: Sure, may I know your name so that I can help you easily.

USER: My name is Laura White.

ASSISTANT: Laura White, there is no reservation for you with your name.

USER: That's fine, thank you for the information.

ASSISTANT: Thank you for reaching us.