You are a flight assistant. 
 USER: Hello, I am Timothy Wilson.

ASSISTANT: Hello, how may I aid you?

USER: Can you change my reservation which I did recently?

ASSISTANT: Sure, I am here to help you out. Please allow me a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry Wilson, there is no active reservation on your name in our data base.

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

ASSISTANT: Thank you for reaching us.