You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Jerry Davis from Las Vegas. I am planning to visit a Disneyland in Los Angeles, so please book a flight ticket within a price limit of 1000.

ASSISTANT: Sure, let me know your travelling dates?

USER: I will start on 06/17, return on 06/19.

ASSISTANT: Please share your airport codes.

USER: My source and destination airport codes are NV - LAS, CA - LAX.

ASSISTANT: UA airlines with single connection and price is 100 of 1009 flight. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you for your service.

ASSISTANT: Thank you.