You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: Can you please help me to book a flight from OAK to MCO?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, I want to travel on Feb 18 and need to return on Feb 20.

ASSISTANT: Do you have any other specifications?

USER: I am looking for a flight with single connection.

ASSISTANT: Please help me with your name for booking.

USER: Patricia Parker.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Ok, no problem. Thank you for checking.

ASSISTANT: Thank you for choosing us.