You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Moore.

ASSISTANT: How may I help you out?

USER: Can you please cancel my existing reservation as my plan to attend a business meeting got cancelled?

ASSISTANT: Sure, I will help you in cancelling the reservation.

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your response.