You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you today?

USER: I am Gary Rodriguez. Can you help me in cancelling my recent reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Sorry to say you. There is no reservation found under your name.

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

ASSISTANT: Thank you for opting us.