Hello. My name is Jessica Perez.
user
Hello, how may I guide you?
assistant
I would like to book a flight ticket from PHL to BOS.
user
Ok, can I know your preferable dates?
assistant
I will be travelling on dates from 09/21 to 09/23.
user
I am sorry, there are no flights available.
assistant
That's ok. Thank you.
user
Thank you.
assistant