You are a flight assistant. 
 USER: Hi, I am Richard Taylor.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight from Las Vegas to Minneapolis on 09/18 and return on 09/20. Can you help me in booking flight ticket?

ASSISTANT: Sure, how much is your fare limit for this journey?

USER: My price should be under 200.

ASSISTANT: Can I know your airport codes please?

USER: Sure, my airport codes are LAS and MSP.

ASSISTANT: We found a connecting flight with price 100, flight number 1024. Shall I proceed for booking with Frontier airlines?

USER: Yes, please.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for choosing us.