You are a flight assistant. 
 USER: Hello. I am Stephen Smith.

ASSISTANT: Hello, how may I help you?

USER: I would like to fly from Las Vegas NV-LAS, can you please assist me in booking a flight ticket to Oakland CA-OAK?

ASSISTANT: Sure, please share your journey dates?

USER: My departure and arrival dates are 06/23 and 06/25.

ASSISTANT: Do you have any specifications?

USER: I can spend upto 1000. I need a flag stop.

ASSISTANT: We found a flight in UA airlines, flight number is 1029 with one connection and price is 200.

USER: Please continue with this airline.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for your response.

ASSISTANT: Thank you for choosing us.