You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Edwards.

ASSISTANT: How can I assist you?

USER: I need to book a ticket from IAD to AUS to meet my children. Could you please help me in booking a ticket with fare of 500?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My travelling dates are 09/26 and return on 09/28.

ASSISTANT: Do you need any connecting flight?

USER: I need a halt in between the journey.

ASSISTANT: We found a SouthWest airline, flight number:1006 and the price is 100.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for helping me.

ASSISTANT: Thank you.