You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: I am Samuel Campbell. I would like to cancel my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: Sure Samuel, I am here to help you with this.

USER: Thank you.

ASSISTANT: Sorry Samuel, there is no reservation found as per your name to cancel it.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome.