You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Timothy Rodriguez.Can you help to cancel my recent reservation?

ASSISTANT: Sure, give me a moment.

USER: Ok.

ASSISTANT: Sorry TImothy, I didn't found any reservation basis on your details.

USER: Ok, that's fine.

ASSISTANT: Thank you for contracting us.

USER: Thank you for the information.

ASSISTANT: You are welcome.