You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I oblige you today?

USER: Can you aid me in booking a flight ticket from DCA to PHL?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I am planning to start on Sep 10th and return back on Sep 12th.

ASSISTANT: Do you need a connecting flight?

USER: Make sure that it is a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please share your good name?

USER: I am Edward Moore.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you.