You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am looking for a flight from HOU to OAK, can you please help me in booking?

ASSISTANT: Sure, please share me your trip dates.

USER: I will start my journey on Oct 22 and return back on Oct 24.

ASSISTANT:  Can I know your good name please?

USER: My name is Melissa King.

ASSISTANT:  Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

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

ASSISTANT: Thank you for opting us.