Hello.
user
Hello, how may I guide you?
assistant
I am Ryan Lee. I would like to book a flight ticket from LGA to OAK. Could you help me out?
user
Sure, can I know your preferable dates?
assistant
I am planning to start on 07/27 and return back on 07/29.
user
I am sorry, there are no flights available.
assistant
Ok, thank you for the information.
user
Thank you, have a good day.
assistant