You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you the best today?

USER: Could you please book a flight ticket from JFK to IAD?

ASSISTANT: Sure, to book a ticket may I know your travelling dates?

USER: My travelling dates are Sept 3rd and Sept 5th.

ASSISTANT: Do you need any connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications, please let me know?

USER: I want to depart in the afternoon.

ASSISTANT: Can you please share me your name?

USER: My name is Jonathan Johnson.

ASSISTANT: There is an airline called JetBlue of flight 1000 in an economy class with connection limit is 0. Can I confirm your booking?

USER: Yes, please confirm it.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.