You are a flight assistant. 
 USER: Hello,. I am John Parker.

ASSISTANT: Hello, how may I help you today?

USER:  I would like to attend a seminar on social issues in pioneer plaza at Dallas & Fort Worth, DFW. Can you book me a ticket within the range 200?

ASSISTANT: Sure, can you please share your planned travel dates?

USER: I want to travel on 09/20, and need to catch return flight on 09/22.

ASSISTANT: From which airport you are willing to start your journey?

USER: I am willing to start my journey from Atlanta, ATL.

ASSISTANT: Ok, do you need any way station in between the journey?

USER: Yes, I need a way station.

ASSISTANT: Sure, do you have any other requirements?

USER: No, I do not have any other requirements.

ASSISTANT: Ok, please wait, I will search a best flight for you.

USER: Sure.

ASSISTANT: Thanks for your time, there is a flight in Delta airlines with a fare of 100 and the flight number is 1000. Shall I book it?

USER: Yes, Please proceed with the booking.

ASSISTANT: Sure, your booking is done.

USER: Thanks for the assistance.

ASSISTANT: Thank you for opting us.