You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Ruth Nelson, I heard that flights might be start late in my previous booking ticket dates. I want to cancel that ticket.

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: There is no reservation with your details.

USER: It's ok.

ASSISTANT: Thank you for approaching us.

USER: Thank you for checking.