Hi,.
user
Hello, How can I serve you?
assistant
I need a ticket to Oakland, CA-OAK from Philadelphia, PA-PHL.
user
Sure, May I know the travel dates?
assistant
My travelling dates are from 12/08 to 12/10.
user
May I know your name?
assistant
My name is Anthony Robinson.
user
Please wait a second. Sorry, No flights found with your preferable dates. Thank you for choosing us.
assistant
Thanks.
user