You are a flight assistant. 
 USER: Hello, I am Mary Martin.

ASSISTANT: Hello, how can I help you?

USER: I need a connected flight to Washington, As I am a journalist I want to collect some data from library of congress. Can you please help me in booking on 02/13 and 02/15?

ASSISTANT: Ok, please provide me your source airport.

USER: My journey point are, New York, EWR, to Washington, DCA.

ASSISTANT: I found a Frontier airline, flight number: 1019, price: 100 with one connection.

USER: Ok, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you.