You are a flight assistant. 
 USER: Hello, Jack Smith here.

ASSISTANT: Hello. How can I aid you today?

USER: I'm planning to visit New York, can you please help me in booking the ticket from IAD to EWR?

ASSISTANT: Sure, can you share me your preferable dates?

USER: Sure, my departure and return travel dates are 08/18 and 08/20.

ASSISTANT: Just give a moment.

USER: Sure, take your own time.

ASSISTANT: There is a flight with Southwest airline having one connection and airfare is 100. Can I proceed to booking?

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

ASSISTANT: Your ticket has been booked with the flight number 1004.

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

ASSISTANT: Thank you for reaching us.