You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

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

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your previous reservation. We regret to inform you that there is no reservation found on your name in our records.

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

ASSISTANT: Thank you for reaching us, have a great day.