You are a flight assistant. 
 USER: Hi, I am Edward Young.

ASSISTANT: Hello, Edward Young. How shall I be at your service?

USER: I am planning to celebrate my birthday at Washington, can you please reserve my ticket?

ASSISTANT: Ok. What are your travelling dates?

USER: My travelling dates are from 09/10 to 09/12.

ASSISTANT: Let me know, if you have any specifications?

USER: Price should not exceed 200. I want a single stopover.

ASSISTANT: Help me with your landing point, so that I can move further in ticket booking.

USER: My landing point is Washington, DC-IAD.

ASSISTANT: Shall I know your other airport code?

USER: My origin is San Francisco, CA-SFO.

ASSISTANT: Please standby.

USER: Ok.

ASSISTANT: You have 1002 with 1 connection of price 100 in Spirit airline. Shall I make a reservation to you?

USER: Yes, please make a reservation.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for approaching us.