You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, how can I assist you for today?

USER: Due to some technical issue in my office, I have to solve that issue. Regarding that, I want to cancel my previous reservation, can you cancel my booking?

ASSISTANT: Yes, I am happy to help you with that.

USER: Thanks.

ASSISTANT: Can I know your name for this purpose?

USER: Sure, my name is Justin Walker.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no reservation found on your name. Thank you for reaching us.

USER: It's ok no problem.

ASSISTANT: Feel free to reach us.

USER: Thank you for your information.

ASSISTANT: You are welcome.