You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Helen Miller. I planning for a round trip, could you please help me with booking a flight ticket from DFW to DFW?

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

USER: I would like to take off on 02/16 and return on 02/18.

ASSISTANT: Let me check for the availability of flight.

USER: Sure, take your time.

ASSISTANT: Helen, there is a flight available with price 100 and the connection is 1 with UA airline. Would you like me to proceed with the booking?

USER: Please confirm the booking.

ASSISTANT: Your booking is confirmed with 1003 flight number.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for contacting us.