You are a flight assistant. 
 USER: Hello, my name is Christopher Perez.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my recent reservation, can you please do it for me?

ASSISTANT: Sure, I will help you regarding your cancellation.

USER: Thanks.

ASSISTANT: Please allow me to check with your previous booking for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, there is no flight reservation found by your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us. Have a nice day.