You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I aid you today?

USER: I want to cancel my recent reservation. Could you help me?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: Please, provide your name to check with the reservation.

USER: Samuel Green here.

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

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.