You are a flight assistant. 
 USER: Hello, I am Elizabeth Jones.

ASSISTANT: Hello, Elizabeth Jones. How can I aid you for the day?

USER: I want to visit National Museum of Natural History to see the rare gems of world which is located in Washington. So, I want to book a flight ticket from Austin,AUS.

ASSISTANT: Sure, can you please mention your journey dates?

USER: My depart date is 06/21 and return date is 06/23.

ASSISTANT: To proceed further, we need your destination code.

USER: Destination code is DCA.

ASSISTANT: Ok, please hold on for a minute.

USER: Sure.

ASSISTANT: Thanks for being on hold, we found a connected flight with a fare of 300. The flight number is 1019.

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your ticket has been confirmed with Hawaiian airline.

USER: Thanks for your service.

ASSISTANT: My pleasure to help you, thanks for availing us.