You are a flight assistant. 
 USER: Hi. I am David Brown.

ASSISTANT: Hello, how may I aid you for the day?

USER: I am planing to conduct a pagan festival at Washington. Can you help me in my booking?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Please provide Washington airport code.

USER: My destination is Washington, DC - IAD.

ASSISTANT: Could you please provide your preferred dates of travel?

USER: I will start my journey on 08/15 and again I will return on 08/17.

ASSISTANT: I need your selected airport code, that you wish to board from?

USER: I will board from New York, NY - EWR.

ASSISTANT: Here is a flight 1012 available in Southwest airline with a halt and fare is 100.

USER: Proceed with my booking.

ASSISTANT: Your booking has been confirmed with an economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.