You are a flight assistant. 
 USER: Hi. I am Nicole Edwards.

ASSISTANT: Hello, how can I help you today?

USER:  I want to book a flight ticket to meet my uncle in Las Vegas, NV - LAS. will you help me in booking a flight ticket with a price limit of 1000?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are 09/01 and recur on 09/03.

ASSISTANT: Please share me your source point.

USER: My source is from Los Angeles, CA - LAX.

ASSISTANT: We are glad to say that, we found an airline: AA, flight number: 1001 and price is 200.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for your prompt service.

ASSISTANT: Thank you for opting us.