You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Myself Lisa Evans, can you help me to cancel the existing reservation?

ASSISTANT: Sure, I here to help you out in cancelling the flight ticket.

USER: Ok, thank you.

ASSISTANT: Sorry Lisa, no reservation on your route.

USER: That's ok, not a problem. I will check my email to know the status of my reservation.

ASSISTANT: Thank you for reaching us.