You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have to attend a Live Concert at Charlotte, could you please help me with booking a flight ticket from MSP to CLT?

ASSISTANT: Can I know your travelling dates?

USER: I would like to depart on Aug 1st and return on Aug 3rd.

ASSISTANT: Is there any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any preference?

USER: Make sure that my depart and return time must be evening.

ASSISTANT: Let me know your name.

USER: I am Brian Martinez.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you.