You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Samantha Moore.

ASSISTANT: How can I assist you?

USER: Please help me in changing my reservation to Atlanta.

ASSISTANT: Ok, please wait I will check your reservation status.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name to change.

USER: Ok, no issues. Thank you.

ASSISTANT: Most welcome.