You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to celebrate my birthday at Atlanta, please help me in booking a ticket from DCA to ATL.

ASSISTANT: Please provide me your itinerary travel dates.

USER: My planned trip dates are on Sept 21 and Sept 23.

ASSISTANT: May I know if you have any airline preference?

USER: I am fine with any airline.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any more preferences that you want to avail?

USER: No more preferences.

ASSISTANT: May I know your name please?

USER: My name is Carol Robinson.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: Frontier Airlines with flight 1017 is providing service on your route with connecting flight and the cost is 200.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked where departure DCA 6:00 hours Sept 21 and arrival ATL 19:00 hours Sept 23.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.