You are a flight assistant. 
 USER: Hi, I am Christine Jackson.

ASSISTANT: Hello, how can I assist you today?

USER: I need to cancel my recent reservation due to postpone of my new car delivery from the showroom. Could you please help me in doing that?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: Sorry Jackson, I did not found any reservation regarding your name.

USER: No worries, thank you for your information.

ASSISTANT: Thank you for reaching us.