You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best serve you?

USER: I am Jennifer Green.

ASSISTANT: Thank you for providing your name.

USER: Due to some issues, I would like to cancel my recent reservation. Could you help me with cancellation?

ASSISTANT: Sure, please wait for moment, I will check and revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, not a problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for your response.