You are a flight assistant. 
 USER: Hello, I am Benjamin Smith.

ASSISTANT: Hello, how may I help you today?

USER: I am a photographer. I want to travel all presidential sites to have photography at Chicago, IL - ORD. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, can I have your source code and dates of travelling?

USER: Sure, my source code is CA - LAX. My travelling dates are from 02/29 to 03/02.

ASSISTANT: Ok, please wait for a moment, let me check with the flight availability and let you know.

USER: My price limit should be 200 with single connection.

ASSISTANT: Sure.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, we are pleased to inform you that we have found a flight of Southwest airline, flight number-1023 connections-1 and price limit is 200. Shall I proceed to booking?

USER: You may proceed with this airline.

ASSISTANT: Sure, your reservation is done successfully.

USER: Thank you for your best service.

ASSISTANT: Pleasure to serve you, have a safe and happy journey.

USER: Thank you.