You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to travel from IAD to AUS as a business trip, can you do the reservation?

ASSISTANT: Please provide your journey dates?

USER: My trip dates are 04/02 and 04/04.

ASSISTANT: Is there any preference?

USER: I need break in my journey.

ASSISTANT: Can I know your name?

USER: David Turner here.

ASSISTANT: Found ticket with Spirit airlines for price 300 having flight number 1028.

USER: Please do the booking.

ASSISTANT: Ticket is booked.

USER: Thank you so much.

ASSISTANT: Thank you.