You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to attend my uncle wedding anniversary at Charlotte, can you help me in booking a ticket on 08/25?

ASSISTANT: Sure, could you let me know your return date?

USER: I would like to return on 08/27.

ASSISTANT: May I know your price limit?

USER: I can pay up to 500.

ASSISTANT: Can I know your origin and destination points?

USER: My origin point is MN-MSP and destination point is NC-CLT.

ASSISTANT: May I know your name?

USER: I am Mark Campbell.

ASSISTANT: We have a direct flight, are you okay with direct flight?

USER: No, I need a connecting flight.

ASSISTANT: Sorry, currently there is no connecting flight available.

USER: Ok, no worries. Thank you for your help.

ASSISTANT: Thank you for approaching our agency.