You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Nicholas Robinson, can you please change my reservation?

ASSISTANT: Sure, please hold on a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation was found on the name of Nicholas Robinson.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for opting us.