You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to travel AUS, can you help me to book flight ticket from DCA?

ASSISTANT: When you are willing to travel?

USER: I planned to travel on Aug 19 and return on 21.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight to reach my destination.

ASSISTANT: May, I know your good name?

USER: I am Virginia Hill.

ASSISTANT: We found 1026 Delta airlines with single connection with price 100. Shall I proceed with the booking?

USER: You can proceed for booking.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.