You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Eric Green. I am looking for a flight from DTW to OAK, can you help me in booking the flight ticket from Detroit?

ASSISTANT: Sure, I will help you out in booking. Can you please share your travelling dates that you have planned for your trip?

USER: Sure, my planned travel dates are Aug 31 and Sept 02.

ASSISTANT: Do you have any specifications?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: May I know your airline preference?

USER: I am fine with any of the airlines.

ASSISTANT: Thank you for providing your travelling details. Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry for the inconvenience, there are no flights in this route as per your travelling details.

USER: That's ok, Thank you for checking.

ASSISTANT: Thank you for approaching us.