You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you for the day?

USER: Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure, I am mirthful to help you with that. May I know your name please?

USER: My name is Scott Carter.

ASSISTANT: Please wait for a moment, let me check your previous reservation status.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting. There is no active reservation found on your name in our database to change it.

USER: Anyway, thanks for the information.

ASSISTANT: Most welcome, thank you for the information.