You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Katherine Carter. I want to attend for a conference in Dallas & Fort Worth, so please book a flight ticket with a price limit of 1000.

ASSISTANT: Sure, I will help to book a ticket. When are you planning to move?

USER: I will start on 11/12, return on 11/14.

ASSISTANT: Could you please provide your airport codes?

USER: My source and destination airport codes are CA-SFO, TX-DFW.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We found a direct flight with your details. Are you ok with this flight?

USER: Do not proceed to booking, I want one connection in my journey.

ASSISTANT: Ok.

USER: Thanks for your service.

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