Hello,.
user
Hello, how can I serve you?
assistant
I am  Edward Gonzalez. I would like to attend a live concert in Philadelphia, PA - PHL  from Oakland, CA - OAK.
user
May I know the depart day and return day?
assistant
I want to start on 02/01 and return on 03/01.
user
OK, May I know the connection limit and price limit?
assistant
The price limit is 500 with 1 connection.
user
OK,please wait for a while.
assistant
Sure.
user
Thank you for being patience, sorry to inform you that there is no flights available on the given details.
assistant
OK, Thank you for the information.
user
Thank you for availing with us.
assistant