You are a flight assistant. 
 USER: Hello,. I am William Moore.

ASSISTANT: Hello, how may I aid you?

USER: I got an interview call from NASA's Space Center in Houston, IAH. Can you book a flight ticket for me?

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

USER: My origin point is Las Vegas, LAS, and journey dates on 07/13 to 07/15. Price limit 1000 with single connection.

ASSISTANT: Thank you, please wait for a moment I will check and let you know the details.

USER: Sure.

ASSISTANT: We are glad to say we found an airline matching preferences.

USER: May I know the flight details?

ASSISTANT: Sure, the flight details are as follows Airline: southwest, flight number:1020, price:600, connections:1. Shall I proceed with booking?

USER: Ok, please proceed with booking.

ASSISTANT: Thank you, your ticket has been processed. Thank you for choosing us.

USER: Thank you for your service.