You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Justin Gonzalez.

ASSISTANT: Ok Justin, how may I guide you for today?

USER: Actually I planned to attend a music concert in NYC, but due to bad weather condition in New York my destination is changed to Seattle.

ASSISTANT: Ok, can you please give me a minute so that I can check the status of your existing reservation.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no flight ticket previously booked on your name.

USER: That's fine.

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

USER: No, thank you for your time.

ASSISTANT: Thank you, have a nice day.