You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how could I support you today?

USER: I need to book a flight ticket, so could you help me with it?

ASSISTANT: Sure, we are glad to help you. Let me know your journey details? May I have your name please?

USER: Sure, my name is Anna Lee and my journey points are from Orlando, FL-MCO to Minneapolis and St.Paul, MN-MSP. My travelling dates are from Aug/23 to Aug/25.

ASSISTANT: Sorry to inform unfortunately there is no flight found. Thank you for choosing us.

USER: OK, thank you for your information.