You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicole Campbell.

ASSISTANT: Nicole, what kind of assistance are you expecting from our end?

USER: I need to cancel my recent reservation due to cancel of my seminar at Denver. Could you please help me?

ASSISTANT: Sure Nicole.Please give me a moment while I check the status of your reservation.

USER: Sure.

ASSISTANT: Sorry Nicole, I have searched the database.Unfortunately, there are no reservations showing with your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you, have a great day ahead.