You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from DEN to CLT to enjoy earth and nature festivals. Can you help me in booking a connected flight?

ASSISTANT: Let me know the travel dates.

USER: Sure, my journey dates are Aug 14 and Aug 16.

ASSISTANT: Is there any connection limit?

USER: Already shared above.

ASSISTANT: May I know the class preference?

USER: I need a business class.

ASSISTANT: Are there any more preferences?

USER: No.

ASSISTANT: May I know the name please?

USER: Sure, Margaret Lopez here.

ASSISTANT:  Margaret Lopez, I regret to inform that there are no flights on your route with the given dates.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you.