You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Angela Lewis here, I want to cancel my recent reservation.

ASSISTANT: Sure, I will help you with this. Please wait for a moment.

USER: Thank you for noting my request.

ASSISTANT: Sorry Lewis, there is no reservation found as per your name to cancel your reservation.

USER: Not an issue, it might be done wrongly at the time of booking.  Anyway thank you for the information.

ASSISTANT: You are welcome and have a pleasant day.