You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Stephen Smith.

ASSISTANT: Ok.

USER: I just want to cancel my recent reservation. Can you do this for me?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your patience, we did not find any reservation on your name.

USER: Ok, no problem. Thanks for the response.

ASSISTANT: Thank you for opting us.