You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to celebrate my parents 25 wedding can you please help me out booking a flight to Oakland,CA-OAK.

ASSISTANT: Sure. Let me know from where you want to board.

USER: I want to start from Phoenix, AZ-PHX.

ASSISTANT: Do you have any specifications to met?

USER: I need a break in between my journey.

ASSISTANT: Help me with your dates of trip to proceed further.

USER: My travelling dates are from 10/15 to 10/17.

ASSISTANT: Your good name please.

USER: I am Christopher Roberts.

ASSISTANT: Please wait for a while, I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available with SouthWest airline, flight number 1000 with fare 100 and a lay by. Shall I reserve this flight?

USER: Yes, you can proceed with the booking.

ASSISTANT: Your reservation has been done.

USER: Thank you for your service.

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