You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

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

ASSISTANT: Sure, I am here to help you. May, I know your good name?

USER: I am Jacob Jones.

ASSISTANT: Sorry, we found no reservation on your given name.

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