You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: My name is Robert Lopez. I want to book the flight ticket, can you please help me out?

ASSISTANT: Sure. May I know the details?

USER: Sure, I want to travel from Atlanta to Las Vegas. On the dates from 07/21 to 07/23. Please check the flight availability.

ASSISTANT: Please provide the codes of airport so that I can help you quickly.

USER: Airport codes are from ATL to LAS.

ASSISTANT: OK. Any price limit along with the connections?

USER: Yes, price should be below 500 and there should not be more than 1 connecting of flight.

ASSISTANT: I found a flight with price limit 100 and connections are as per request. Can I proceed?

USER: Its sounds good, please proceed it.

ASSISTANT: Your flight number is 1017 with airline:JetBlue. Thank you.

USER: Thank you for helping me.

ASSISTANT: Have a safe journey.

USER: Have a nice day.