You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you.

USER: Cynthia Martinez here, can you assist me to cancel my existing reservation please?

ASSISTANT: Sure, I am here to help you in cancelling the reservation.

USER: Ok, thank you.

ASSISTANT: Sorry, there is no active reservation on your name.

USER: That's ok, not a problem. Thank you for your service.

ASSISTANT: Thank you for reaching us.