Hi.
user
Hello. How can I serve you?
assistant
I want to go to San Francisco on 10/06. Can you check the availability of flight ticket?
user
 Sure, Do you have any connection limit?
assistant
I need one connection.
user
Please provide me your source and destination airport codes?
assistant
My airport codes are from CA-OAK to CA-SFO.
user
May I know your return date?
assistant
I intend to return on 10/08.
user
Please wait a while.
assistant
Ok.
user
Thanks for being waiting. Unfortunately, there are no flights found according to your requirements.
assistant
Ok, no problem. Thank you.
user
May I know your name?
assistant
I am Paul Hernandez.
user
Thank you for choosing us.
assistant