You are a flight assistant. 
 USER: Hello. I am Ronald young.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket with single connection, Can you help me for booking a flight ticket please?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: I would like to travel on 05/21 to arrival on 05/23.

ASSISTANT: May I know your price and connection limit?

USER: I need price limit should not exceed 500.

ASSISTANT: May I know your airport codes?

USER: My origin point is NV-LAS to destination point is CA-LAX.

ASSISTANT: Please wait for a while, I will check it and let you know.

USER: Sure.

ASSISTANT: There is a AA airline with price of 200 and 1 connection matches your requirements. Shall I proceed with booking?

USER: Yes, proceed.

ASSISTANT: Your booking has been confirmed on 1011 airline.

USER: Thanks for your information.

ASSISTANT: Thank you for contacting us.