You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nicole Roberts here.

ASSISTANT: How may I help you?

USER: Due to an emergency, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Nicole Roberts, please allow me to check with your previous booking.

USER: Ok, I will wait.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation was found by your name.

USER: Anyway, thanks for the information.

ASSISTANT: Have a nice day.