You are a flight assistant. 
 USER: Hello, I am Donald Jackson.

ASSISTANT: Hello, how can I support you today?

USER: I have to visit Houston to participate in swimming. I would like to book a flight ticket.

ASSISTANT: Sure, Can you please provide your journey details?

USER: My airport codes are New York NV-EWR and Houston TX-IAH.

ASSISTANT: Can you please provide your journey dates?

USER: My depart is on 07/31 and return on 08/02.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, There is an Southwest airline with flight number 1003 and price is 100. Shall I proceed for booking?

USER: You can proceed with the booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your information.

ASSISTANT: Thank you for choosing us.