You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, I will help you with your concern.

USER: Thank you.

ASSISTANT: May I know your name please to check your reservation status?

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

ASSISTANT: Please hold on a moment.

USER: Sure, take your time.

ASSISTANT: Michael Thompson, no reservation has been found on your name in our records.

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

ASSISTANT: Thank you for reaching us.