You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me for booking from BOS to DCA to attend for an exam?

ASSISTANT: Sure, please provide your travelling dates.

USER: My trip dates are on Nov 26 and 28.

ASSISTANT: Ok, Do you have any class preference?

USER: No, I am fine with any class.

ASSISTANT: Ok, please let me know your connection limit.

USER: I need a connected flight.

ASSISTANT: Ok, Is there any other preferences?

USER: My return time is evening.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1007 Frontier Airlines with a fare of 200. Can I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: May I know your name?

USER: Benjamin Miller here.

ASSISTANT: Your ticket has been booked and return time is 22:00 hours.

USER: Thank you.

ASSISTANT: Thank you for reaching us.