Hello.
Hello. How may I help you?
I am Deborah Nelson. Can you please help me to book a flight ticket from OAK to DTW?
Sure, I am happy to help you with the ticket booking.  Could you please help me with your travel dates?
Sure, my travelling dates are on 01/29 and 01/31.
Ok, do you have any airlines preference?
Yes, I need a business class.
Ok, do you have any other specifications?
My return time should be morning.
Ok, please give me a minute. I will search the flight and get back to you.
Sure.
Sorry to tell you that, I have not found any flight availability in this route on the dates you have given.
Ok, not an issue. Thank you.
You are most welcome. Thank you for reaching us.