You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

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

ASSISTANT: Sure, I will help you in change, please hold on for a moment to check your reservation status.

USER: My reservation was done under the name Anthony Mitchell.

ASSISTANT: Mitchell, there is no any active reservation with your name in my database.

USER: That's ok, not an issue. Anyways, thank you for the information.

ASSISTANT: It's my pleasure.