Hi.
user
Hello, how can I aid you?
assistant
I want to book a flight ticket from OAK to SFO, can you help me with that?
user
Sure, can you share your trip dates?
assistant
My travel dates are 05/09 and 05/11.
user
Do you have any preferences?
assistant
I need a direct flight in business class.
user
May I know your name?
assistant
I am Ruth Martinez.
user
Sorry, there is no flight on your given dates.
assistant
That's ok. Thank you for your service.
user
Thank you for opting us.
assistant