You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: My name is Kenneth Hall. I'm planning a trip to Lake Austin in AUS with my friends, can you book a ticket from ORD?

ASSISTANT: Can I know your travel dates?

USER: My travelling dates are 11/10 and 11/12.

ASSISTANT: Flight-1001 with Delta airlines is available, shall I proceed for booking?

USER: Make sure that the price limit should not exceed 500.

ASSISTANT: The price is 100.

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked, thanks for reaching us.

USER: Thank you for the help.