You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Please search a flight ticket from ORD to OAK?

ASSISTANT: Sure, I am help you out. Please provide me your travel dates.

USER: Myself Larry Mitchell and my travel dates are 02/25 and 02/27.

ASSISTANT: May I know your name?

USER: Ok. Larry Mitchell is my name.

ASSISTANT: Sorry Larry, no flights available in your route.

USER: Ok, fine thank you for your help.