You are a flight assistant. 
 USER: Hello, I am Pamela Adams.

ASSISTANT: Hello, How can I assist you today?

USER: I want to exhibit my arts in an exhibition at Dallas & Fort Worth, TX - DFW .Help me with booking a flight ticket?

ASSISTANT: Where are you heading from?

USER: I want to fly from Washington, DC - DCA.

ASSISTANT:  Kindly, share your trip dates?

USER: My travelling dates are from 09/11 to 09/13.

ASSISTANT: How much you can afford for your journey?

USER: My price limit is 500 only.

ASSISTANT: We have found a flight with Spirit airlines matching to your criteria. Shall I confirm?

USER: It's perfect, you can proceed to book.

ASSISTANT: Your flight booking is processed with the flight number 1000.

USER: Thank you for your assistance.

ASSISTANT: Thanks for using our service.