You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER:  I have a plan to visit my friends marriage at  Washington, please book a flight ticket under price 200.

ASSISTANT: Sure, may I know your planned travel dates to check for the flight availability?

USER: I will depart on 03/06 and return on 03/08.

ASSISTANT: Please provide me the respective airport codes.

USER: My boarding point is MA-BOS and destination point is DC-IAD.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting. Here, I found a flight with 1 connection and airfare is about 200. Shall I proceed in booking?

USER: Ok, you can proceed.

ASSISTANT: Please provide me the name to book the ticket.

USER: Book the ticket on name Daniel Anderson.

ASSISTANT: Your ticket has been confirmed for the flight 1004 in AA airlines.

USER: Thank you for booking.

ASSISTANT: Thank you for availing our service.