You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in booking a flight ticket from IAH to ATL?

ASSISTANT: May I know your trip dates?

USER: My travel dates are July, 20 and July, 22.

ASSISTANT: Do you have any connecting flight preferences?

USER: Yes, I need connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: Donna Campbell here.

ASSISTANT:  There is a flight in United Airlines with the ticket price of 600 having one connection and business class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked with the flight 1004.

USER: Thank you.

ASSISTANT: Thank you.