You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How could I aid you?

USER: I would like to visit Washington, please help me in booking a ticket from PHX to IAD.

ASSISTANT: Sure, may I know your departure date and arrival date?

USER: My planned travel dates are on Aug 30 and Sept 1.

ASSISTANT: Do you have any other requirements?

USER: I would like to depart in the afternoon.

ASSISTANT: Can you please share me your name?

USER: My name is Mark Wilson.

ASSISTANT: We found a flight with an airline Southwest of flight 1013 in an economy class with connection limit is 0 and depart time is 17:00 hours. Can I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you.