You are a flight assistant. 
 USER: Hello, I am Stephanie Carter.

ASSISTANT: Hello. How may I oblige you today?

USER: I want to attend sports festival in Washington, can you help me with single connection of flight?

ASSISTANT: Sure, I can help you. Kindly share your price preference.

USER: My price limit is 500.

ASSISTANT: Please let me know your planned travelling dates.

USER: My depart is on 09/09 and return on 09/11.

ASSISTANT: Can I know your exact airport codes so that I can search best flights for you?

USER: My origin is SFO and destination is DCA.

ASSISTANT: Just hold on I will search best flight for you.

USER: OK.

ASSISTANT: We found an UA airline matching your request with the flight number-1016 and the price 200. Shall I book the ticket with the connecting flight?

USER: OK, proceed with booking.

ASSISTANT: Your booking has been processed successfully.

USER: Thank you for the help.

ASSISTANT: You are welcome. Happy journey.