You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in reserving a flight ticket to DCA from AUS?

ASSISTANT: Sure, I am here to help you for this. When are you planning your trip?

USER: My preferred travel dates are from Sept 20 to Sept 22.

ASSISTANT: May I know your name please?

USER: I am Brian Nelson.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: At what time are you planning to depart and return?

USER: I am comfortable with any timings.

ASSISTANT: There is a flight with United Airlines and the ticket fare is 100. Would you like me to make the booking now?

USER: You can proceed with booking.

ASSISTANT: Your ticket is reserved in economy class with the flight-1025.

USER: Thank you for helping me.

ASSISTANT: Thank you very much for approaching our agency.