You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am planning to visit Houston, will you help me in booking the flight ticket from DFW to HOU?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travelling dates are Apr 25 and Apr 27.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preferences?

USER: No, I dont have any other specifications.

ASSISTANT: Can you please provide your name to proceed further?

USER: Myself Alexander Roberts.

ASSISTANT: There is a connecting flight with ticket fare 500 in AA airlines in business class. Is it ok for you?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your booking is confirmed with flight number 1003. Departure time is 22:00 hours and arrival time is 16:00 hours.

USER: Thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.