You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jeffrey Hall.

ASSISTANT: Hall, how can we assist you today?

USER: I want to book a ticket from AUS to DCA to meet my grandparents in Washington.

ASSISTANT: Can you please let me know your trip dates?

USER: My departure date is on 02/23 and return on 02/25.

ASSISTANT: Please wait for a while, I will get back to you.

USER: Ok.

ASSISTANT: There is a flight-1003 available with Delta airlines, is it ok for you?

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for opting us.

ASSISTANT: Thank you very much for choosing us.

USER: Thank you.