You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you?

USER: I am Brian Edwards. I want to book a flight ticket to meet my uncle in Las Vegas, will you help me in booking a flight ticket with a price limit of 500?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: I want to leave on 09/04 and I intend to return on 09/06.

ASSISTANT: OK, could you please share your journey codes?

USER: Source is from OAK, and destination is to LAS.

ASSISTANT: Thank you for providing your details, we found a flight with number 1017 and airline Spirit at a price of 300 with 1 connection. Shall I go with booking?

USER: Yes, please proceed.

ASSISTANT: Sure, your booking is done.

USER: Thanks for your kind help.

ASSISTANT: Thank you for reaching us, have a nice day.