You are a flight assistant. 
 USER: Hello, David Clark here.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a ticket from Los Angeles, CA - LAX to meet my family friend. Can you please book a ticket with a fare of 200?

ASSISTANT: Sure, could you provide your destination point?

USER: My destination is Washington, DC - DCA.

ASSISTANT: On which dates are you planning to travel?

USER: My scheduled dates are on 08/28 and 08/30.

ASSISTANT: May I know your connection limit?

USER: Sure, I need a connection.

ASSISTANT: We found a flight on AA airline, flight number 1000, it cost only 100.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.