Hi, Elizabeth Davis here.
user
Hello Davis, how can I assist you?
assistant
 Can you please help me in booking a flight ticket from OAK to PHX?
user
Sure, could you please tell me your trip dates?
assistant
Ok, my trip dates are 05/19 and 05/21.
user
Please wait for a while.
assistant
Ok, please check for a connecting flight.
user
Sorry to say you that there is no flight available with single connection on your preferred dates.
assistant
Ok, no problem. Thank you for helping me.
user
You are welcome.
assistant