You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best serve you now?

USER: I want to book a connecting flight ticket to attend an cultural fest at MN. Can you help me?

ASSISTANT: Sure, can you please share me your trip dates?

USER: Thank you. 07/29 and 07/31 are my travelling dates.

ASSISTANT: I need to know your selected airport code, that you wish to board from?

USER: DEN and MSP are my airport codes.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I need to depart in the morning and it should be a normal-cost airline. Make sure that its a business class.

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

USER: Matthew Hall.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: We are sorry to say that, there is no flight found on your requested dates.

USER: No issue. Thank you.

ASSISTANT: Thanks for choosing us, wish you a great day.