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: Give me a moment, let me check your details. May I know your name please?

USER: My reservation was done under the name Katherine Lee.

ASSISTANT: Sorry, there is no reservation found under your name.

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

ASSISTANT: Most welcome.