You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to change my reservation as I am leaving for hometown, can you please help me out?

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

USER: Justin Lewis here.

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

USER: Ok no problem, thank you for your services. Check the reservation status.

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

USER: No issues, thank you for your services.

ASSISTANT: Thank you for reaching us, have a great day.