You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How exactly I can serve you the best today?

USER: Can you aid me to book my ticket from IAD to PHL?

ASSISTANT: Sure, I am happy to assist you in booking. Please share your planned travelling dates to proceed further.

USER: My travel dates are Aug 15 and Aug 17 respectively.

ASSISTANT: Kindly share your name please.

USER: Charles Edwards here.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I prefer for a lay by.

ASSISTANT: Would you like to avail any benefits for the comfort of your journey?

USER: Nothing else, you can proceed for booking.

ASSISTANT: Thank you for your details, please hold a moment let me search a flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Delta airline with the flight number-1012 and the fare 400. Shall I book the connecting flight?

USER: Please book the ticket.

ASSISTANT: Your flight booking is confirmed and ticket has been emailed.

USER: Thank you for the help.

ASSISTANT: Thank you for approaching us.