You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to change my reservation as my plan to visit New York is postponed. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: My name is Laura Williams.

ASSISTANT: We found a reservation in your name. Can I have your airport codes?

USER: My source point is CLT and destination is EWR.

ASSISTANT: Help me with the trip dates?

USER: I will fly on Feb 14 and return on Feb 16.

ASSISTANT: Do you have any preferences?

USER: I prefer a connecting flight.

ASSISTANT: We found a flight in an airline Hawaiian with 1003 number having a single connection in an economy class. Shall I proceed to book?

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.