You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I best serve you today?

USER: I want to book a ticket from LAS to AUS. Could you book a ticket?

ASSISTANT: May I know your travel dates?

USER: Depart is by May, 24 and return date is May, 26.

ASSISTANT: Do you have any other preferences?

USER: I prefer economy class.

ASSISTANT: May I know your name please?

USER: My name is Brandon Thomas.

ASSISTANT: Do you have any connection limit preferences?

USER: I would prefer direct flight.

ASSISTANT:  There is a flight in Southwest airlines with the ticket price of 200 having direct flight and economy class. Can I proceed to booking?

USER: Please book a ticket.

ASSISTANT: Your ticket is booked with the flight 1025.

USER: Thanks.

ASSISTANT: Thank you for choosing us.