You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me to book a flight ticket from ORD to MSP?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: I am Ronald Brown.

ASSISTANT: Ok, do you need any connection in between the journey?

USER: I prefer connecting flight for this trip.

ASSISTANT: Ok, please share your travelling dates for further process.

USER: My travel dates are Apr 02 and Apr 04.

ASSISTANT: Do you have any other specifications?

USER: I would like to prefer economy class flight ticket.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Thank you for your time, sorry we didn't find any flights with your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.