You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself James Collins.

ASSISTANT: How may I assist you at this moment?

USER: I need to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for your kind response.

ASSISTANT: Please wait a moment to check your previous reservation.

USER: Sure.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: That's ok, thank you for searching my details.

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