You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER:  I want to book a ticket for my father on name Thomas Brown from MA-BOS. Can you book a ticket to DC-IAD?

ASSISTANT: Ok. May I know your travelling dates?

USER: My travelling dates are 08/03 and 08/05.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: There is a flight 1006 in Frontier airline and price 100 with a connection.

USER: Ok, you can reserve.

ASSISTANT: Shall I proceed? Reservation is done.

USER: Ok. Thank you for your help.

ASSISTANT: Thank you.