You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: John Davis here.

ASSISTANT: Welcome to flight booking agency John Davis.

USER: Can you help me to book a flight from AUS to DFW?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates are 19 Nov and 21 Nov.

ASSISTANT: Is there any additional requirements do you have?

USER: I need a connecting flight and price should not exceed 1000.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure, take your own time.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 100 provided by Frontier airlines. Shall I proceed with this?

USER: Proceed to booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1025.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us, have a great journey.