You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you today?

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

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: For changing your reservation status, we need to know your name to check your reservation status. Can I know your name to proceed?

USER: My name is Katherine Parker.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: We regret to say that, we have not found any active reservation to change your existing reservation.

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

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

USER: You are welcome.