You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: My scheduled examination dates has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Sure, we are here to help you. Can I have your name to proceed further?

USER: My reservation was done under the name Rebecca Thompson.

ASSISTANT: Thank you for your time, unfortunately no reservation found on your name.

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

ASSISTANT: Thank you for availing us.