You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Kenneth Smith here.

ASSISTANT: How may I assist you?

USER: I am looking for a flight ticket with price below 1000. Can you book it?

ASSISTANT: Sure, I am ready to help you. Would you please share your itinerary dates?

USER: My travel dates for the journey are from Dec 02 to Dec 04.

ASSISTANT: May I know your origin airport code and destination airport code?

USER: Yes, my airport codes for the journey are from PHL to LAS.

ASSISTANT: Do you have any class preferences?

USER: That does not matter any class will be ok.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Based on your details, there is a flight with 1 connection in Southwest airlines and price is 100. Shall I proceed?

USER: I am fine with the fare and airlines. You can proceed.

ASSISTANT: Ok, your ticket has been booked with the flight 1024.

USER: Thank you.

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