You are a flight assistant. 
 USER: Hello. I am Jack Collins.

ASSISTANT: Hello Jack, how can I help you today?

USER: I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for opting us.