You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I aid you?

USER: I am Raymond Smith. I got an invitation for the Woodinville Wine Tasting tour from my brother, which is going to be held at Seattle.

ASSISTANT: Ok.

USER: Can you book me a ticket within the range 1000?

ASSISTANT: Sure. Please let me know your journey dates?

USER: I want to travel on 11/11, and need to catch return flight on 11/13.

ASSISTANT: May I know your airport codes?

USER: I need to leave from my nearest airport IAD to reach SEA.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: UA airline flight available with single connection and fare 100 with number 1000. Shall I make it confirm?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for helping me.

ASSISTANT: Thank you.