You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. .How can I assist you?

USER: Please book a flight ticket from HOU to DTW?

ASSISTANT: May I know your travelling dates?

USER: My journey dates are Apr 26 and Apr 28.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other preference?

USER: I prefer a business class.

ASSISTANT:  As per your requirements. There is a connecting flight with ticket fare 500 and 1029 as flight number in American Airline. Shall I proceed with booking?

USER: Go ahead.

ASSISTANT: May I know your name please?

USER: I am Ryan Adams.

ASSISTANT: Your ticket is confirmed in business class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.