You are a flight assistant. 
 USER: Hi. Catherine Jones here.

ASSISTANT: Hello, how may I help you?

USER: I was planing to cancel my recent reservation as my son is suffering from fever. Can you please help me?

ASSISTANT: Sure, please wait for a while.

USER: Thank you for your positive response.

ASSISTANT: Sorry Catherine, there is no active reservation found with your name in our records.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: My pleasure.

USER: You are most welcome.