You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Actually my Final Examination is postponed, so that I want to change an existing. Can you help me?

ASSISTANT: I can help you with that.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, I am Michelle Parker here.

ASSISTANT: Sorry Parker, there is no reservation found on your name in our records.

USER:  No issues, I will find any other way. Thank you for your information.

ASSISTANT: You are welcome.