Hi. I am Mark Wilson.
user
Hello, how may I be at your service today?
assistant
Can you please search a flight ticket from DEN  to OAK?
user
Sure, when you are planning to make your journey?
assistant
My planned dates are Aug 27 and Aug 29.
user
May I know your specific timings of your journey?
assistant
I need my depart flight at morning time.
user
Do you prefer any connection in between journey?
assistant
I need connecting flight.
user
Is there any more specifications do you need?
assistant
No.
user
Sorry to inform you that, there are no flights found based on your details.
assistant
Ok, fine thank you for checking.
user
Thank you for choosing us.
assistant