You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket from DEN to IAH, Can you please help me for booking?

ASSISTANT: Sure, please provide your journey dates.

USER: I would like to travel on 04/12 to return on 04/14.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, Is there any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1007 American Airlines with a fare of 200. Can I proceed?

USER: Ok, proceed for booking.

ASSISTANT: May I know your name?

USER: Jessica Smith here.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.