You are a flight assistant. 
 USER: Hello, I am Nancy Jackson.

ASSISTANT: Hello,. How may I help you?

USER: I would like to travel from DCA to BOS, can you help me with booking?

ASSISTANT: Sure.

USER: And I need a direct flight with the fare of 500.

ASSISTANT: May I know your travelling dates.

USER: I want to start my journey on 05/01  and would return on 05/03.

ASSISTANT: Direct flight from DCA to BOS is available with flight details: Airline frontier, flight number 1005, price 100.

USER: Ok, please confirm this ticket.

ASSISTANT: Flight is confirmed.

USER: Thanks for your service.

ASSISTANT: Have a great day !.