You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to book my ticket from DEN to MCO. Can you please help me with booking a flight ticket?

ASSISTANT: My I know the travel dates?

USER: Sure, my planned travel dates are from Mar 10 to Mar 12.

ASSISTANT: Is there any connection preference?

USER: I am looking for a connecting flight in my journey.

ASSISTANT: Are there any more preferences that you want to avail?

USER: Yes, I need to book my ticket in business class.

ASSISTANT: May I know your name please?

USER: Sure, myself Amy Clark.

ASSISTANT: Amy Clark. I regret to inform that there are no flights on your route.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.