You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service?

USER: I am planning to conduct an woman empowerment event at Seattle on 12/12 and my return date will be on 12/14, can you help me in booking?

ASSISTANT: Sure, please let me know your budget for this booking.

USER: I can pay up to 500 for the flight ticket.

ASSISTANT: Could you please share your airport codes?

USER: My source and destination points are IAD and SEA.

ASSISTANT: May I know your name?

USER: I am Timothy Anderson.

ASSISTANT: UA airline is going on your way and the fare is 200. Is that fine?

USER: Ok, you can book the ticket.

ASSISTANT: Your ticket has book in flight 1015.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for choosing us.