Hi.
user
Hello. How may I help you?
assistant
I need to book a flight ticket from BOS to PHL, Can you please help me for booking?
user
Sure, on which dates you are planning to travel?
assistant
I would like to travel on 04/17 to return on 04/19.
user
May I know your name?
assistant
Anthony Harris.
user
Sorry Anthony, on these dates there is no flight available.
assistant
Ok, no poblem. Thanks for your information.
user
Most welcome.
assistant