You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: My name is Richard Edwards from San Francisco. I want to exhibit my arts in an exhibition at Washington DC- IAD. Help me with booking the flight ticket.

ASSISTANT: Sure, we are glad to help you.

USER: Thank you for considering my request.

ASSISTANT: Could you please tell me your origin airport?

USER: Sure, it is CA - SFO.

ASSISTANT: May I know your travel dates?

USER: My planned journey dates are on 01/26 and return on 01/28.

ASSISTANT: How much can you afford for this ticket?

USER: I can afford up to 200 only.

ASSISTANT: Ok. Wait a moment please.

USER: Sure.

ASSISTANT: We found an UA airline of flight number 1004 with a price limit of 100.Shall I proceed for booking with single connection?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been reserved successfully.

USER: Thank you.

ASSISTANT: Thank you for approaching us.