You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Walker.

ASSISTANT: How can I assist you?

USER: I have to attend my sister's wedding at Seattle, could you please help me with booking a flight ticket?

ASSISTANT: Please share your travel dates.

USER: I would like to take off on 03/05 and return on 03/07.

ASSISTANT: Can I know your airport codes?

USER: My nearest source airport code is DCA and destination airport code is SEA.

ASSISTANT: The flight 1002 of Southwest airlines is available on your requested dates with a price of 200. Shall I proceed?

USER: Please proceed with the booking if the connection is 1.

ASSISTANT: Andrew, your reservation has done successfully.

USER: Thank you for your service.