You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I need to change the destination airport code in the existing reservation. Can you please help me to do that?

ASSISTANT: Sure, I will help you.

USER: Thank you for accepting my request.

ASSISTANT: Can you please share your name?

USER: My name is Virginia Wilson.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thanks for being patient, we found a reservation your name. Can you please share your travel dates?

USER: That's great, my planned travel dates are Feb 15th and Feb 17th.

ASSISTANT: May I know your airport codes?

USER: The source airport code is SEA and the destination airport code is LGA.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I prefer a single connecting flight to travel.

ASSISTANT: Is there any other requirements?

USER: No, thanks for asking.

ASSISTANT: We found a  connecting flight 1009 in UA airline with fare 300 and class is economy. Shall I proceed?

USER: I am fine with this flight, you can proceed with the ticket booking.

ASSISTANT: Your booking has been confirmed.

USER: Thanks a lot for your help.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.