You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you please change my recent reservation? As I have a lot of work to do on my previous travel dates.

ASSISTANT: Sure, we are here to help you.

USER: Thanks for that.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Daniel Carter.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name to change.

USER: That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for reaching us.