You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you aid me to book a flight ticket from DEN to DCA?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are Sept 30 and Oct 2.

ASSISTANT: May I know your connection limit?

USER: Sure, I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, other specifications.

ASSISTANT: May I know your name please?

USER: Myself Gregory Evans.

ASSISTANT: We found a Frontier airline, flight number: 1025, price: 100 with one connection.

USER: Please proceed with this flight.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for choosing us.