You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a connecting flight ticket to take a part in an food festival which is going to held at MI. Can you help me?

ASSISTANT: Sure, may I know your good name please?

USER: Ronald Young.

ASSISTANT: When do you want to travel?

USER: Oct 15th and 17th are my travelling dates.

ASSISTANT: Can you share your specific airport codes?

USER: DEN and DTW are my airport codes.

ASSISTANT: Do you have any connection limit?

USER: I need a break.

ASSISTANT: Do you have any other specifications?

USER: I would like to travel in an business class.

ASSISTANT: Sorry, there is no flight on your required dates.

USER: No issue, I will choose an other alternative. Thank you for the information.

ASSISTANT: Thank you for choosing us.