You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel Harris.

ASSISTANT: How could I support you today?

USER: Can you please help me with booking a direct flight from ATL to LAS?

ASSISTANT: Sure, to book a ticket can I have travelling dates?

USER: Sure, my preferable dates are 08/22 and 08/24.

ASSISTANT: May I know your budget for flight ticket?

USER: My budget is 500.

ASSISTANT: We found a flight with an airline UA of flight 1010 and cost is 100. Can I proceed with the booking?

USER: Yes, please book it.

ASSISTANT: Your ticket had been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.