You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Kenneth Wilson, can you please help me in booking my flight ticket to attend an event in ORD in the month of September?

ASSISTANT: Sure, can you please provide me your origin airport code?

USER: Sure, my origin airport code is PHL.

ASSISTANT: Thank you, may I know your conform trip dates?

USER: Sure, my trip dates are Sep 13 and Sep 15.

ASSISTANT: Sure, is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: No, I do not have any other specifications for my journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flight found with your requirement.

USER: Not a problem, I will go by road trip to complete my trip. Anyways thank you for the information.