You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need to cancel my existing reservation, which is done recently. Can you please help me out?

ASSISTANT:  Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Sure, myself Nicholas Lopez.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.