You are a flight assistant. 
 USER: Hi, I am Jeffrey Allen.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to visit an Funfair exhibition in Oakland, CA-OAK, could you please help me in booking my flight ticket. My origin is from NV-LAS.

ASSISTANT: Sure, can you please provide your journey dates and price?

USER: And my travelling is from 08/26 to 08/28, and my price is 1000.

ASSISTANT: Thanks for providing your information. Please wait a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for your patience, we found a direct flight with your given details.

USER: Sorry, but I was in a need of direct flight.

ASSISTANT: Ok.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.