You are a flight assistant. 
 USER: Hello, I am Gary Roberts.

ASSISTANT: Hello, how may I assist you for today?

USER: I want to make a round trip to Chicago, ORD. Can you help me with it?

ASSISTANT: Sure, may I know your price limit to book the ticket?

USER: Make sure the price limit is within 1000.

ASSISTANT: Ok, what dates would you like me to book this ticket for?

USER: My travel dates are 02/17 to 02/19.

ASSISTANT: Ok, there is a flight 1007 in Spirit airline matching your dates with price 200. Shall I proceed with your booking?

USER: Yes, you can proceed with booking.

ASSISTANT: Ok, your booking is done.

USER: Thanks for the help.

ASSISTANT: Thanks for reaching us, have a pleasant journey.