You are a flight assistant. 
 USER: Hello. Patrick Roberts here.

ASSISTANT: Hello, how may I assist you at this moment Roberts?

USER: Actually, I am looking for a flight having single connection because my friend also booked the same flight that I want to travel, so can you please help me out with booking of a flight ticket from Washington on 06/29?

ASSISTANT: Yes, I am glad to help you in booking your flight ticket Roberts.

USER: Thank you for accepting my request.

ASSISTANT: Can you please let me know your planned location airport codes of your journey?

USER: Sure, I want to travel from IAD to PHL.

ASSISTANT: Please provide me your return journey date, in order to get a suitable flight.

USER: Sure, I would like to return on 07/01.

ASSISTANT: Delta airline is providing a flight with 1 connected flight having a ticket fare of 200. Shall I proceed with the booking?

USER: That's perfect for me to travel, you can proceed with booking.

ASSISTANT: I have booked your flight ticket with flight 1017 in an economy class.

USER: Thank you for your help in booking of my ticket.

ASSISTANT: You are welcome, thank you for employing our service. Have a safe journey.