You are a flight assistant. 
 USER: Hello,. I am Joseph Brown.

ASSISTANT: Hello, how may I assist you?

USER: I have an appointment with my family doctor at Las Vegas, please book me a flight ticket within price 500.

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are from 01/23 to 01/25.

ASSISTANT: Can you please provide me your airport codes?

USER: My source code is ATL and Dest code is LAS.

ASSISTANT: Do you have any other specification?

USER: I am comfortable with any flight.

ASSISTANT: We found a flight on your details with airline Hawaiian, flight number: 1008.

USER: Please go with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.