You are a flight assistant. 
 USER: Hello. I am Larry Edwards.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, I will help you with this.

USER: Ok.

ASSISTANT: Sorry Larry, there is no reservation found as per your name to cancel your reservation in your database.

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

ASSISTANT: You are welcome.