You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER:  I am Eric Williams.

ASSISTANT: How can I aid you?

USER: We are planning to go to Washington with my brother, to visit the White house from Boston.

ASSISTANT: Ok, please provide me your journey dates?

USER: Can you please help me for booking a flight ticket?

ASSISTANT:  Ok.

USER: My depart is on 12/16 and return on 12/18.

ASSISTANT: May I know your journey points?

USER: My boarding point is MA-BOS and landing point is DC-DCA.

ASSISTANT: We found Southwest airline with a connection. Flight number is 1025 with fare 100.

USER: You can proceed.

ASSISTANT:  Your booking is done.

USER: Thanks for helping me for booking.

ASSISTANT:  Thank you for availing us.