You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please make a reservation on the name of Kathleen Clark?

ASSISTANT: Sure,could you please share your travelling dates?

USER: My journey dates are on Sept 4th and 6th.

ASSISTANT: May I know your boarding point and landing point?

USER: My airport codes are, ORD to DTW.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Can I know your other specifications?

USER: I don't have any other specifications.

ASSISTANT: Ok, wait a minute.

USER: Sure.

ASSISTANT: There are no flights available on your travelling dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.