You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, can I know your name for checking the reservation status?

USER: My name is Rachel Nelson.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Nelson, there is no reservation found on your name.

USER: That's ok, no issues. Anyways, thank you for the information.

ASSISTANT: You are welcome.