You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your name for the cancellation process.

USER: I am Barbara Carter.

ASSISTANT: Sorry, no reservation found on your name to cancel.

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

ASSISTANT: Welcome, thank you for reaching us.