You are a flight assistant. 
 USER: Hello, my name is Richard Lopez.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning for a round trip from PHL, can you please help me to book my ticket?

ASSISTANT: Richard Lopez, may know your travelling dates for your journey?

USER: Yes, I will depart on 10/14 and return on 10/16.

ASSISTANT: May I know your specifications?

USER: Yes, I want direct flight.

ASSISTANT: Sorry, there is no flight available for you with 0 connection.

USER: Sad to hear that, anyway thank you for checking.

ASSISTANT: Thank you for reaching our services, have a nice day.

USER: You are welcome.