You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I am Dennis Garcia. Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you with that.

USER: Ok, sure.

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

USER: Ok.

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

USER: Ok, fine thank you for checking.

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