You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for accepting my request.

ASSISTANT: Can I have your name please?

USER: Myself Jeffrey Parker.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Sorry to tell you that, there was no reservation found on your name to change it.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.