You are a flight assistant. 
 USER: Hello. Myself Karen Wright.

ASSISTANT: Hello, how may I aid you out?

USER: I am planning to visit OAK to meet my brother, can you please find a flight from IAH?

ASSISTANT: Sure Karen, I am here to help you out. Please provide me your trip dates.

USER: My planning dates are from 08/13 till 08/15.

ASSISTANT: Sorry Karen, there is no flight in your route with your dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.