You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emma King.

ASSISTANT: How may I aid you?

USER: Can you please book a flight with price limit 500?

ASSISTANT: Sure, let me know your journey dates?

USER: Ok, I want to travel on Feb 15 and intend to return on Feb 17.

ASSISTANT: Could you please share me your airport codes?

USER: Sure, my source code is PHX and destination code is JFK.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We found a AA airline with the ticket fare of 100 and a halt in between the journey. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1023 and an economy class.

USER: Thank you.

ASSISTANT: Thanks for choosing us.