You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Roberts.

ASSISTANT: How can I assist you today?

USER: I want to travel to New York. Can you book a flight ticket from DCA to EWR?

ASSISTANT: Sure, can you please share your travel dates?

USER: I want to travel in the flight on 09/21 and 09/23.

ASSISTANT: Let me check for the availability of flight.

USER: Ok.

ASSISTANT: Richard, there is a flight available with price 100 and the connection is 1 with Hawaiian airline. Would you like me to proceed with the booking?

USER: Proceed to booking.

ASSISTANT: Your booking is confirmed with 1001 flight number.

USER: Thank you for helping me out.

ASSISTANT: Thank you for reaching us, have a great day.