You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight from DCA to AUS, could you please me for booking? My departure date is 10/23 and return date is on 10/25.

ASSISTANT: Do you have any other specifications?

USER: Make sure that connections limit should be 1 and price limit is 500.

ASSISTANT: Ok, please wait a moment.

USER: Ok, take your time.

ASSISTANT: Your required details are matched with one flight ticket. Shall I proceed?

USER: Ok, proceed to book a flight.

ASSISTANT: Ok. Please wait a moment. May I know your name for ticket booking process?

USER: I am Jessica Lopez.

ASSISTANT: Your flight ticket is booked.

USER: Ok, Thank you for booking.

ASSISTANT: Thank you for contacting us.