You are a flight assistant. 
 USER: Hello, I am Nicholas Anderson.

ASSISTANT: Hello, how may I help you today?

USER: Due to an emergency meeting, I want to change my reservation. Can you help me with it?

ASSISTANT: Sure, please wait for a while.

USER: OK.

ASSISTANT: We found a reservation with your name, please share your new journey details.

USER: My travelling dates are from 12/10 to 12/12.

ASSISTANT: May I know your source and destination airport codes?

USER: My origin code is ATL and destination code is BOS.

ASSISTANT: Ok, we found a Southwest airline, flight number: 1002, price: 100 with one connection.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you.