You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Jones.

ASSISTANT: How can I assist you?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, give me a minute. Jones, there is no reservation available on your name.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Welcome.