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. May I know your name please?

USER: My reservation was done under the name Jeffrey Parker.

ASSISTANT: There is no reservation on your name in our database.

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

ASSISTANT: Thank you for choosing us.