You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Carolyn Wilson here. I was made a reservation earlier in this week. But I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure Wilson, I am here to help you out.

USER: Ok.

ASSISTANT: Please allow me a moment to check the reservation on your name.

USER: Ok, I will wait.

ASSISTANT: Sorry Wilson, there is no reservation on your name. Thank you for reaching us.

USER: Thanks for the information.