You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you help me to book a business class flight ticket?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travel dates are May 05 and May 07.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My airport codes are DEN and MSP.

ASSISTANT: Do you have any airline preferences?

USER: I am comfortable with any airlines.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I am looking for connecting flight.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: No, thanks for asking.

ASSISTANT: Can you please provide your name to proceed further?

USER: My name is Thomas Scott.

ASSISTANT: Sorry, there are no flights available at your request.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day.