You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today/.

USER: Owing to an emergency, my business conference got cancelled. So I want you to cancel my existing reservation.

ASSISTANT: Sure, we are here to help you. May I know your name for the further process?

USER: Sure, George Moore here.

ASSISTANT: Sorry, no active reservation found on your name in our data base.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Welcome, thank you for reaching us.