You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Alexander Robinson, willing to travel Chicago for my business meeting.Can you please help me to book a flight ticket from Las Vegas, NV - LAS?

ASSISTANT: Sure, when you are planning to travel?

USER: My planning dates to travel are 10/30 and 11/01.

ASSISTANT: Ok, can I have your destination code please?

USER: My destination code is IL - ORD.

ASSISTANT: Yes, I found a flight-1009 with the Frontier airlines, can I proceed?

USER: Can I know the price limit?

ASSISTANT: Yes, the ticket fare is 100.

USER: Yes, book it for me.

ASSISTANT: Yes Robinson, your ticket is confirmed.

USER: Thank you for the booking.

ASSISTANT: Thank you for contacting us, have a safe journey.

USER: You are welcome.