You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is Jeffrey Clark.

ASSISTANT: Thank you for telling your name.

USER: I want to celebrate New Years day in Las Vegas, so please book a flight ticket with price limit of 500.

ASSISTANT: May I know your travelling days?

USER: I will start on 01/02, return on 01/04.

ASSISTANT: To proceed further we require your airport codes?

USER: My source and destinations are CA-OAK, NV-LAS. And connections limit is one.

ASSISTANT: Do you need any connection limit? Thank you for providing your information. Please wait for a while.

USER: Ok.

ASSISTANT: We are so happy to inform you that we found a flight 1008 in Spirit airlines and price is 300 with single connection . Shall I move with booking?

USER: You can proceed to booking.

ASSISTANT: Your booking is done.

USER: Thanks for booking a flight.

ASSISTANT: Thank you for availing with us.