You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Yes, I can help you. Sorry to inform you that there is no reservation found on your name.

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

ASSISTANT: Thank you for contacting us.