You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to change my travel dates in the past ticket, can you please help me to do that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for considering my request.

ASSISTANT: May I know your name please?

USER: My name is Kathleen Garcia.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry to inform you that, there is no reservation found as per your name.

USER: It's ok, not a problem with that. Thank you for checking my ticket status.

ASSISTANT: Thank you for reaching us with a query.

USER: You are welcome.