You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Ruth Edwards. I want to book a flight ticket from DTW to CLT. Could you help me in booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from Sep 05-07.

ASSISTANT: Do you need any specifications?

USER: Yes, I need a connecting flight and my depart time should should be in the afternoon.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching our service.