You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How best may I serve you today?

USER: Please help me to book a flight ticket from DFW to EWR.

ASSISTANT: When are you planning to make your journey?

USER: My travel dates are June, 19 and June, 21.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I need connecting flight.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: United Airlines is providing connecting flight with the ticket fare of 100 and depart time is 16:00 hours, arrival time is 16:00 hours. Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1010.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Scott Nelson.

ASSISTANT: Thank you for choosing us.