You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Miller.

ASSISTANT: How can I assist you?

USER: I am planning to book a ticket from ORD to DFW. Can you please help me out?

ASSISTANT: Sure, can I know your travel dates?

USER: I would like to travel on 03/27 and return back on 03/29.

ASSISTANT: The flight 1002 of AA airlines is available on your requested dates with a price of  100 and with 1 connection.

USER: Yes, you can proceed the booking.

ASSISTANT: Frank, your reservation has been done successfully.

USER: Thank you for your service.

ASSISTANT: You are welcome.