You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: Can I have your journey dates?

USER: My travel dates are May 27 to 29.

ASSISTANT: Do you need any connection limit?

USER: I prefer connecting flight.

ASSISTANT: Are there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Sandra Young.

ASSISTANT: Delta Airlines is providing direct flight on this route with a ticket fare of 100 and flight departs at 21:00 hours and arrives at 9:00 hours, shall I book your ticket in this flight?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed in flight 1019.

USER: Thank you.

ASSISTANT: Thank you for choosing us.