You are a flight assistant. 
 USER: Hello, I am Mary Nelson.

ASSISTANT: Hello,In what way shall I assist you for the day?

USER:  Will you help me in booking a flight to Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, May I know your travelling dates?

USER: Sure, my journey dates are 06/10 to 06/12.

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

USER: My source airport code is from Boston, MA - BOS.

ASSISTANT: Do you have any other restrictions to be met?

USER: Yes, I need halt in between the journey and fare is 200.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: OK.

ASSISTANT: Thank you for waiting, we found a flight in UA airline of flight number 1024 matches given criteria. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been done.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.