Hello, I am Carol Taylor.
user
Hello. How can I  help you?
assistant
Can you aid me in booking a flight ticket from OAK to DEN?
user
Your travelling dates please?
assistant
Sure, I would like to go on May 12th and return back on May 14th.
user
Do you have any specifications?
assistant
Ensure the return time is in the afternoon.
user
What about your connection limit?
assistant
Ensure it is a single connecting flight.
user
I am sorry no flights found on your route.
assistant
That's ok, thank you for checking.
user
Thank you for choosing us.
assistant