You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: My name is Christine Carter. I want to book a flight ticket with a price limit of 200 for visiting a Lake Merritt in Oakland.

ASSISTANT: Sure, may I know your travelling dates?

USER: My departure day is 08/24, return day is 08/26.

ASSISTANT: Can you share me your airport codes?

USER: My source and destinations are NC-CLT, CA-OAK.

ASSISTANT: OK.

USER: Connections limit is one.

ASSISTANT: There is a flight with the price of 300 and one connection. Shall I proceed?

USER: Don't proceed to booking, my price limit is 200. Thanks for your service.

ASSISTANT: Thanks for choosing us, have a good day.