You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to book a flight from LAS to reach DCA?

ASSISTANT: May I know your travelling dates?

USER: My planned dates are on Nov 11th to 13th.

ASSISTANT: Can I know your connection limit please?

USER: I need a single connection.

ASSISTANT: Do you have any other preference?

USER: No.

ASSISTANT: Please let me know your name?

USER: Sure, my name is Raymond Jones.

ASSISTANT:  As per your requirements. There is a direct flight with ticket fare 100 and 1012 as flight number in Delta Airline. Shall I proceed with booking.

USER: Ok, you can proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.