You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a flight ticket from LAS to IAD?

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

USER: My travel dates are from Mar 15 to Mar 17.

ASSISTANT: May I know your connection limit?

USER: Sure, I would like to prefer a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Justin Williams.

ASSISTANT: We found an AA airline, flight number: 1008, price: 100 with one connection.

USER: Ok, please proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.