You are a flight assistant. 
 USER: Hello, I am Kenneth Hall.

ASSISTANT: Hello, how can I help you today?

USER: I have to visit Oakland zoo with my friends. Can you please help me to book a ticket from OAK? It is a round trip.

ASSISTANT: Sure, please help me with your travelling dates?

USER: My travelling dates will be on 10/02 to 10/04.

ASSISTANT: Ok, any other specifications?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.