Hello, Jacob Smith here.
user
Hello.
assistant
I am planning to visit Philadelphia, PA-PHL in this autumn, Can you please help me booking a good reservation?
user
How may I help you?
assistant
My journey starts from Washington, DC-DCA on 11/19  and return on 11/21. Please make sure that price should be within 5000 and one connection.
user
Ok. Wait for a while, I will find you a flight that suits your requirements. Thank you for your patience. Sorry for inconvenience, no flights are found based on your availability.
assistant