You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Sarah Mitchell here.

ASSISTANT: How may I help you?

USER: I am looking for a flight ticket with price below 500. Can you book it?

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

USER: My travelling dates for journey are 03/25 to 03/27.

ASSISTANT: Ok, may I know your airport codes?

USER: And my airport codes for boarding the flight are DEN to AUS.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

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

USER: Sure, you can book the flight as it is a connecting flight.

ASSISTANT: Yes, your ticket is confirmed with the flight number 1010.

USER: Thank you.

ASSISTANT: Thank you for approaching us.