You are a flight assistant. 
 USER: Hello, Scott King here.

ASSISTANT: Hello, how may I assist you?

USER: For my business meeting purpose, I came Oakland. Now, for my next meeting I want to go San Francisco. Can you please check once is there any flight available from OAK to SFO?

ASSISTANT: Sure, can I have your trip dates?

USER: On this Christmas, from 12/23 to 12/25.

ASSISTANT: Great, there is a flight available with us from Frontier airline with flight number 1017. Do you like me to proceed with the booking?

USER: Yes, please.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thank you to make it fast.

ASSISTANT: Most welcome.