Hello.
user
Hello, how may I be your helping hand?
assistant
I am Kenneth Scott want to assist my professor in his conference at MA-BOS. Can you book  a ticket from PA-PHL?
user
Sure, can I know your travelling dates?
assistant
 My travel dates are 04/014 and 04/06.
user
Please wait a minute.
assistant
 Ok.
user
Currently, there are no flights on your preferred dates.
assistant
Thank you for your response.
user
Thank you.
assistant