You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am planning to enjoy with my friends at Carowinds a theme park with water rides at Charlotte NC-CLT.

ASSISTANT: Ok.

USER: Can you help me with booking a flight ticket on 02/21?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: May I know when are you planning to return?

USER: I would like to return on 02/23.

ASSISTANT: Can I know your boarding airport code please?

USER: My takeoff airport code is Washington DC-DCA.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a whistle stop in between my journey.

ASSISTANT: Your good name please.

USER: Amanda Martin here.

ASSISTANT: Thank you for being patience. I am glad to inform you that, there is a flight available with Frontier airline, flight number 1012 with fare 100 and a lay by. Shall I confirm this flight?

USER: Yes, please.

ASSISTANT: Your booking has been successfully done.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.