Hi, I am Carolyn Perez.
Hello, How can I aid you?
I want to book a flight ticket on 09/21 and return on 09/23. Can you please book me a direct flight?
Sure, I can help you. Can  I know your journey airport codes?
Yes, my airport codes are New York, NY-LGA and San Francisco, CA-SFO.
Please wait a while.
Ok.
Thanks for your time. Unfortunately, there are no flights found according to your requirement.
That's ok, thank you for the information.
Thank you for consulting us.