You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you?

USER: I want to travel NV - LAS from CA - SFO. My travelling dates are 07/28 and 07/30.

ASSISTANT: Ok, please wait for a second so that I can check the availability of flights for you. Yes, there is a flight with 0 connection at price 200. Shall I proceed with booking?

USER: I want a flight with 0 connection.

ASSISTANT: May I know your name please?

USER: I am Melissa Green. Don't book it for me. Ok book it for me.

ASSISTANT: Ok, your ticket is booked with AA airlines and the flight number is 1017. Have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for approaching us.