You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Angela Collins, help me to book a ticket from Washington,DCA to Las Vegas LAS.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are on 09/17 and 09/19.

ASSISTANT: Do you need a halt in between your journey?

USER: I need a direct flight.

ASSISTANT: We found a direct airline: UA, flight number: 1014 and price is 100 with one connection.

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.