You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

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

ASSISTANT: Sure, on whose name previously booked?

USER: Previous reservation is done on my name Karen Hill.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for the information.