You are a flight assistant. 
 USER: Hello, I am Virginia Brown.

ASSISTANT: Hello, how can I help you today?

USER: I have to attend my formula one racing training can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your source and destination?

USER: My source code is from Washington DC-IAD to PA-PHL.

ASSISTANT: Please share your travel dates.

USER: I am planning to start on 02/10 to 02/12.

ASSISTANT: Do you want connecting flight?

USER: I need a direct flight.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No problem.

ASSISTANT: Ok, thank you for opting us.

USER: Thank you for the information.