You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I amend you?

USER: Can you book a flight ticket from DCA to BOS?

ASSISTANT: Sure. Can you send me the trip dates?

USER: My travelling dates are from 04/19 to 04/21.

ASSISTANT: Please provide me your name.

USER: My name is Justin Adams.

ASSISTANT: Do you need a connecting or direct flight?

USER: No, I need a direct flight.

ASSISTANT: Thanks for sharing the details. We found a direct flight that matches your request.

USER: Ok.

ASSISTANT: 1007 flight number. Shall I proceed to book?

USER: Ok, Proceed.

ASSISTANT: Reservation is done. Thank you.

USER: Thank you.