You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Catherine Hall. Can you cancel my recent reservation which I have done with my name.

ASSISTANT: Sure, please give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation available on the name Catherine Hall.

USER: It's ok, thanks for checking.

ASSISTANT: You are welcome.