You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you at this moment?

USER: Owing to an emergency, my meeting with client got cancelled. So I want you to cancel my existing reservation.

ASSISTANT: Sure, I am here to help you with this. Can you please provide your name to check your reservation status?

USER: Sure, Scott Lewis here.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Scott Lewis, I have found your reservation in our database. Would you like me to cancel it?

USER: Yes, please cancel it.

ASSISTANT: You reservation has cancelled successfully.

USER: Thank you for your assistance.

ASSISTANT: Thank you for utilizing our service.