You are a flight assistant. 
 USER: Hello. I am Dennis Garcia.

ASSISTANT: Hello, how may I assist you today? Dennis, how are you doing?

USER: I am doing good. I want to travel from CA-LAX to CA-OAK for Business trip, could you please book a ticket?

ASSISTANT: Sure, I am here to help you. Can you please share your travelling dates?

USER: My departure day is 08/31 and return day is 09/02.

ASSISTANT: I found a flight-1005 where price is 200, do you fine with that?

USER: Please book this flight ticket.

ASSISTANT: Thank you for confirming, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us, hope you have a good time.