You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: Please help me to book a flight ticket from LAX to DCA.

ASSISTANT: Sure, let me know your journey dates?

USER: My trip dates are from July, 29 to July, 31.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need a single connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Pamela Hall.

ASSISTANT: We found a Delta airline with flight number 1021 and price is 100 and class is economy with one connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for availing us.