You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking the flight ticket from DCA to AUS?

ASSISTANT: Sure, please share your travel dates.

USER: My travel dates are Nov 23 and Nov 25.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: May I know your good name?

USER: My name is Betty Smith.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in normal cost airlines.

ASSISTANT: Sorry, there is no flight services available on your required routes.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for choosing us.