You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: Please make a reservation with the name of Jerry Rodriguez from Los Angeles.

ASSISTANT: Ok, may I know your travelling dates please?

USER: My travelling dates are Mar 03 and Mar 05.

ASSISTANT: Ok, may I know your destination airport code please?

USER: I am heading to OAK.

ASSISTANT: Ok, do you have any specifications?

USER: I prefer an economy class. And I need a single connecting flight.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure.

ASSISTANT: Sorry Jerry Rodriguez, there are no flights available on your requested dates.

USER: Not a problem, thank you for the information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.