You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

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

ASSISTANT: I am happy to help you with that. May I know your name please?

USER: I am Stephanie Carter.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

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

ASSISTANT: Thank you for reaching us.