You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please check the availability of flights in between the points from OAK to HOU?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are on May 23 and 25.

ASSISTANT: Do you have any requirements?

USER: I need a connected flight.

ASSISTANT: Let me know your name?

USER: Sarah Mitchell here.

ASSISTANT: Sorry, no flight is available for you as per your requests.

USER: Ok, thanks for your service.

ASSISTANT: Welcome.