You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to change my reservation to another destination?

ASSISTANT: Sure, may I know your name?

USER: My name is Thomas Martin.

ASSISTANT: We found your reservation, can I know your airport codes?

USER: My airport codes are BOS and AUS.

ASSISTANT: Do you have any other preferences?

USER: I want to fly in economy class.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are Jan 30 and Feb 01.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: We found a direct flight on southwest airline, flight number 1020 with the fare of 100. Can I proceed?

USER: Proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.