You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Robert Nelson here, can you please help me in booking the ticket from DCA to PHL? As I'm planning to visit Philadelphia.

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my planned departure and return travel dates are 01/02 and 01/04.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your ticket is booked, flight number 1001.

USER: Thank you so much for your help in booking the ticket.

ASSISTANT: Thank you for opting us.