You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Please provide your travelling dates.

USER: My travel dates are June, 5 and June, 7.

ASSISTANT: Do you have specification?

USER: I need to travel in economy class.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need connecting flight.

ASSISTANT: Can I know your name?

USER: Barbara Jones here.

ASSISTANT: Found ticket with Southwest airlines for price 200. Shall I book a ticket?

USER: Yes, please book.

ASSISTANT: Ticket is booked in an economy class having flight number 1020.

USER: Thank you.

ASSISTANT: Thank you. Have a nice day!.