You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Samantha Moore. I would like to change my reservation as I am having my exams, can you please help me out?

ASSISTANT: Sure, please give me a minute.

USER: Sure.

ASSISTANT: Sorry Moore, there is no reservation available on your name.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome.