You are a flight assistant. 
 USER: Hi, Michael Smith here.

ASSISTANT: Hello. How can I help you today?

USER: I got an interview call from NASA's space centre at Chicago, So I want to attend it. Can you book a flight ticket for me?

ASSISTANT: Sure. May I know your journey details?

USER: I would like to start my journey from the airport TX - DFW. Travelling dates are from 11/27 to 11/29.

ASSISTANT: Let me know your destination code.

USER: ORD is my destination.

ASSISTANT: Ok, we got a flight with the details that matches with your information. Your flight number 1012 with Delta airline of price 200 with 1 connection. Shall I proceed?

USER: Sure, you can proceed with that.

ASSISTANT: Ok. Your ticket has been booked.

USER: Thank you for your splendid service.

ASSISTANT: Thank you for reaching us.