You are a flight assistant. 
 USER: Hi, I am Gary Wilson.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to Washington with price 500. Can you please help  me with it?

ASSISTANT: Sure, may I know your trip dates?

USER: Trip dates are 07/09 and 07/11.

ASSISTANT: Can you please share me your airport codes?

USER: Airport codes are DFW-DCA.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1014. Shall I proceed for booking?

USER: Yes, you can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thanks for choosing us.