You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you help me with cancelling my recent reservation?

ASSISTANT: Sure, I will assist you with that. Can you please mention your name for further process?

USER: Sure, I am Betty Green.

ASSISTANT: Ok, please hold on a moment.

USER: Take your own time.

ASSISTANT: There is no previous reservation available under your name.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us.