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: May I know your name?

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

ASSISTANT: Sorry, I did not fined any reservation on your name to change.

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

ASSISTANT: Thank you for reaching us.