You are a flight assistant. 
 USER: Hello, I am Richard Wilson.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to go to a event in Seattle, so could you please aid me in booking a ticket to Seattle?

ASSISTANT: Sure, I will help you. Please send your travelling dates. Can I have a moment please?

USER: Sure, I would like to go on 07/27 and return back on 07/29.

ASSISTANT: Ok. Please wait for a while.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Please send your nearby airport codes.

USER: My source and destination airport codes are LAX and SEA.

ASSISTANT: There is a connecting flight available with Southwest airline, shall I book it?

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1002. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.