You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

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

ASSISTANT: I am here to help you about that. Can you please let me know your name for checking the reservation status with your name?

USER: Thank you for considering my request. Myself William Carter.

ASSISTANT: Sorry William Carter, there is no active reservation under your name for cancellation of your reservation.

USER: Not a big problem, anyway thank you for the information.

ASSISTANT: You are welcome, thank you for reaching us.