You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Patricia Baker, please book me a plane ticket from OAK to HOU.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my trip dates are from 08/03 to 08/05. I need 1 connected flight.

ASSISTANT: Sorry, there is no flight available for your request.

USER: That's ok, thank you for the information.

ASSISTANT: You are welcome.