You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Anna Robinson. I need to book a flight ticket with single connection, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, can you please share your preferable travel dates?

USER: I would like to travel on 11/17 to arrival on 11/19.

ASSISTANT: Could you please help me with the airport codes?

USER: My source point is WA-SEA to IL-ORD.

ASSISTANT: May I know the price limit that you are looking for?

USER: I need price limit with in 500.

ASSISTANT: Ok, let me check for the availability of flight on this route.

USER: Sure.

ASSISTANT: Anna, there is a flight available with price 100 and the connection is 1 with Southwest airline. Would you like me to proceed with the booking?

USER: Ok, proceed for booking.

ASSISTANT: Your booking is confirmed with 1027 flight number.

USER: Thanks for your information.

ASSISTANT: You are welcome. Thank you for choosing our service.