You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: My self Jennifer Green, I want to cancel my reservation, which is done recently. Can you please help me?

ASSISTANT: Sure, please wait a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry Green, there is no reservation found on your name.

USER: Ok, It might be canceled by my manager, but he didn't inform me.

ASSISTANT: Thank you for approaching us.

USER: Anyway, thank you for searching.