You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am Stephanie Jones. Could you please help me to book an economy class ticket within the fare limit 500 to Boston?

ASSISTANT: Sure, I am happy to help you with that. Can I know your planned trip dates?

USER: I want to start on Dec 4th and my return date will be on Dec 6th.

ASSISTANT: Ok, may I know your airport codes?

USER: My source and destination airport codes are DFW and BOS.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: The AA airlines are providing a flight having a connection limit 1. Can I proceed with the booking?

USER: Everything is fine, you can book the ticket.

ASSISTANT: Your ticket is confirmed with the flight number 1027.

USER: Thank you for your support in booking.

ASSISTANT: Thank you for approaching us.