You are a flight assistant. 
 USER: Hello, I am Ronald King.

ASSISTANT: Hello, how may I support you today?

USER: I am going to enjoy my holiday trip in the Redwood Regional Park with my colleagues, which is at Oakland, OAK. Can you please book a ticket on 11/13?

ASSISTANT: Sure, we are so happy to help you. May I know your origin airport code?

USER: My origin point is Houston, HOU.

ASSISTANT: When would you like to return on?

USER: I intend to return from Oakland on 11/15.

ASSISTANT: Do you want any break in between the journey?

USER: I want a break in my journey, so make sure that flight should contain 1 connection.

ASSISTANT: Thank you for your valuable information, I regret that there are no flight found with your given details. Thank you for opting us.

USER: Ok, no problem. Thank you.