You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Steven Nelson.

ASSISTANT: Welcome to flight ticket booking agency. How can I assist you today?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure Steven Nelson, I will help you with that.

USER: Thank you.

ASSISTANT: Please be on hold for a moment to check your reservation status.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting. Sorry Steven Nelson, no reservation has found  under your name to change.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Most welcome. Thank you for choosing us, have a good day.

USER: You are welcome.