You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: Can you please help me to book a flight from BOS to DCA?

ASSISTANT: Sure, Let me know your planned dates.

USER: My planned dates are on Nov 21st to 23rd.

ASSISTANT: Can you please share your good name please?

USER: Sure, my name is Eric Evans.

ASSISTANT: Do you have any other specifications?

USER: I prefer a connected flight.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: We are glad to inform you that, there is a flight found in 1002 Frontier Airline with a fare of 300. Can I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: Sure, your booking has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing our service.