You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jonathan Mitchell.

ASSISTANT: Jonathan, how can I aid you today?

USER: I am planning to visit IAD to meet my father, can you please find a flight from PHL?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My planning dates are from 09/05 till 09/07.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you. I found a flight for you with Southwest airline and it costs you 100. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked with 1007 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.