You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christopher King.

ASSISTANT: How can I serve you?

USER: I would like to attend women's fashion week which is organised by my cousin in Washington, DC-DCA. Can you please help me in booking?

ASSISTANT: Sure. May I know your travelling dates?

USER: My travel dates are from 03/10 to 03/12.

ASSISTANT: Let me know your origin.

USER: My source is at Las Vegas, NV-LAS.

ASSISTANT: There is a flight 1003 in UA airline and price 100 with a connection. Shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Reservation is done.

USER: Thank you.

ASSISTANT: Thank you.