You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sarah Robinson.

ASSISTANT: How can I help you?

USER: I want to visit EWR on my business meeting, could you book a ticket from OAK?

ASSISTANT: Ok. Can I know your travelling dates?

USER: It's from 12/12 to 12/14.

ASSISTANT: I had found a flight for you with a price of 100 and connections of 2. Can I proceed?

USER: Sorry, I need the flight with 0 connections.

ASSISTANT: Sorry, there is no flight available with 0 connection. Sorry for the inconvenience.

USER: It's fine. Thank you for your immediate response.

ASSISTANT: Thank you for reaching us.

USER: Welcome.