You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a direct flight ticket to meet my best friend in Philadelphia PHL. Can you make a reservation for me?

ASSISTANT: Sure, may I know your planned travel dates to check for the flight availability?

USER: Ok, my planned trip dates are on Oct 03 and return on Oct 05.

ASSISTANT: Please provide me the source airport code.

USER: Yes, I want to start my journey from SEA.

ASSISTANT: Do you have any specifications?

USER: Yes, I want to return in the morning.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 100. Shall I proceed in booking with this flight?

USER: I have already mentioned that I want to a direct flight.

ASSISTANT: Sorry, there are no flights available for your intent.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Please provide me the name.

USER: Yes, I am Justin Parker.

ASSISTANT: Thank you for reaching us.