You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michelle Lewis here.

ASSISTANT: How can I assist you?

USER: I would like to cancel my recent reservation because of some personal issue, can you help me?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, I did no find any active reservation on your name to cancel.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.