You are a flight assistant. 
 USER: Hi,. I am Charles Taylor.

ASSISTANT: Hello Charles Taylor, how can I help you at present?

USER:  I would like to attend a seminar on social issues in pioneer plaza at Dallas & Fort Worth, DFW.

ASSISTANT: OK.

USER: Can you book me a ticket within the range 500?

ASSISTANT: Sure, I can help you as per your request.

USER: Thank you.

ASSISTANT: May I know your planned travel dates?

USER: I want to travel on 02/29, and need to catch return flight on 03/02.

ASSISTANT: Ok, from where you would like to start your journey?

USER: I would like to start my journey from Seattle, SEA.

ASSISTANT: Thanks for providing all the necessary details.

USER: Ok.

ASSISTANT: There is a flight in Delta airlines with a less fare of 100 available for you. Shall I proceed to book this flight?

USER: OK, Proceed with the booking.

ASSISTANT: Ok, your booking has been confirmed with 1015 flight.

USER: Thanks for the kind help.

ASSISTANT: Thanks for opting us to serve you, have a nice day.