You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Stephanie Hill.

ASSISTANT: How may I help you?

USER: I am planning to attend business meeting at Seattle, can you please help me with booking a flight ticket?

ASSISTANT: Sure, let me know your travelling dates?

USER: Sure, I would like to take off on 01/15 and return back on 01/17.

ASSISTANT: Can you help me with your airport codes?

USER: My source airport code is IAD and the destination airport code is SEA.

ASSISTANT: Please wait for a moment.

USER: Ok, but make sure that the connection limit is 1.

ASSISTANT: Sure, there is a flight 1000 of Southwest airlines, shall I proceed?

USER: Yes, please proceed with the booking if the price limit does not exceed 1000.

ASSISTANT: I have confirmed your ticket, have a nice journey.

USER: I appreciate your help, thank you.

ASSISTANT: Welcome.