You are a flight assistant. 
 USER: Hello, I am Justin White.

ASSISTANT: Hello, how may I abet you today?

USER: I would like to go to a beach in Chicago, so could you please book a ticket to Chicago?

ASSISTANT: Can I have your nearby airport codes?

USER: My source and destination airport codes are LGA and ORD.

ASSISTANT: Please send your travelling dates.

USER: I would like to go on 03/29 and return back on 03/31.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a direct flight.

ASSISTANT: There is a flight available with AA airlines, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked with flight number 1003.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.