You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you with today?

USER: This is Ronald Green. I want your help in booking my flight ticket.

ASSISTANT: Sure, can you please help me with the source and the destination airport codes?

USER: I want to travel from NC - CLT to CA - LAX.

ASSISTANT: Can you please provide your travelling dates?

USER: My travel dates are 12/02 and 12/04.

ASSISTANT: Let me check that for you.

USER: Make sure connection limit is 1 and price should not exceed 1000. OK.

ASSISTANT: Ronald, there is a flight available at your request. Would you like me to book a flight ticket for you?

USER: Yes, sure please book it for you.

ASSISTANT: Sure. Your booking is confirmed. Your flight number is 1001 and the airline is Southwest.

USER: Thank you for the information.

ASSISTANT: You're welcome. Thank you for contacting us.