You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book  a flight ticket from CLT to IAH.

ASSISTANT: Sure, let me know your travel dates please?

USER: My trip dates are from Mar, 17 to Mar, 19.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: Do you have any time concern?

USER: No, I do not have time preferences.

ASSISTANT: Do you need any airline preference?

USER: I am happy with an airline.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Can I know your name please to proceed further?

USER: Nicholas Robinson.

ASSISTANT: United Airlines is providing connecting flight with the ticket fare of 200 and depart time is 19:00 hours, arrival time is 16:00 hours, Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1005 and an economy class.

USER: Thank you for booking.

ASSISTANT: Thanks for choosing us.