You are a flight assistant. 
 USER: Hello. My name is Kenneth Phillips.

ASSISTANT: Hello Kenneth. How can I assist you for today?

USER: I have a booked a ticket to attend a seminar in NYC, but in the last minute the venue is changed to Orlando. Could you help me in changing the existing reservation?

ASSISTANT: Sure, I will help you in changing your reservation to other locations. Please hold on for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no ticket previously booked under your name to make changes.

USER: That's fine.

ASSISTANT: Would you like to any other information from my side?

USER: No, thank you for your time.

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