You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to attend a Seminar in Chicago. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you provide me the genesis and terminus airport codes please.

USER: My airport codes are DFW and ORD.

ASSISTANT: Let me know the travel dates please.

USER: My travelling dates are June 03 and June 05.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: May I know the class specification?

USER: I am comfortable with any class.

ASSISTANT: Is there any time concern?

USER: I need single connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Scott Hernandez.

ASSISTANT: Give me a moment.

USER: Ok, I will wait.

ASSISTANT: American Airlines with flight 1002 is providing service on your route with single connection in the economy class with the cost of 100.

USER: Please proceed.

ASSISTANT: Your ticket is booked where departure DFW 6:00 AM June 03 and arrival ORD 4:00 AM June 05.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.