You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you assist me in cancelling my previous flight reservation.

ASSISTANT: Sure, I am here to you. May I know your name?

USER: Myself Linda Lopez.

ASSISTANT: Sorry, there is no reservation found under your name to cancel.

USER: Ok, no issues. Thanks for your checking.

ASSISTANT: Thank you for the information.