You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you for the day?

USER: I am Susan Roberts, I want to book a flight ticket to Washington DC to visit trade fair. Can you book a connecting flight?

ASSISTANT: Sure, I am here to help you. May I know when you are willing to travel?

USER: I will fly on 11/22 and return on 11/24.

ASSISTANT: Can you please help me with your airport codes?

USER: My source point is NY-LGA and destination is DC-IAD.

ASSISTANT: Do you have any other specifications?

USER: My budget is 200.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1021 UA airlines with single connection with price 100.

USER: Please proceed with booking.

ASSISTANT: Shall I proceed with the booking.

USER: Sure.

ASSISTANT: Sure. Your booking has been confirmed with UA airlines.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us. have a great day.