You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit Olympic National Park at Washington, could you please help me with booking a flight ticket from ATL to DCA?

ASSISTANT: Sure, I am here to help you for this. When are you planning your trip?

USER: I would like to depart on Apr 25th and return on Apr 27th.

ASSISTANT: May I know your name please?

USER: I am Mary Rodriguez.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: At what time are you planning to depart and return?

USER: I am comfortable with any timings.

ASSISTANT: Is there any other criteria?

USER: No.

ASSISTANT: There is a flight with Frontier Airlines and the ticket fare is 200. Would you like me to make the booking now?

USER: Please confirm the booking.

ASSISTANT: Your ticket is reserved in business class with the flight-1022. Your depart time is 22:00 hours and again your arrival time is 6:00 hours.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you very much for contacting our agency.