You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you at this moment?

USER: I am Carolyn Anderson from Washington. I would like to attend a film festival at Boston, so can you book a ticket with a connecting flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please forward your journey dates?

USER: My journey dates are 02/26 and 02/28.

ASSISTANT: Ok, please share your airport codes.

USER: DCA and BOS are my journey airport codes.

ASSISTANT: Is there any class preference?

USER: I prefer an economy class.

ASSISTANT: Thanks for your details, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a direct flight with a fare of 200, shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, I have booked your ticket in 1011 AA airline.

USER: Thank you.

ASSISTANT: Thank you for choosing us.