You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Helen Turner.

ASSISTANT: How can I assist you?

USER: I would like to visit MSP to meet my friend, can you please help me to book a flight ticket from ORD?

ASSISTANT: May I know your travel dates?

USER: Sure, my travel dates are July 11 and July 13.

ASSISTANT: Do you have any preferences?

USER: I need a direct flight.

ASSISTANT: Sorry, we couldn't found any flights for you.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.