You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I need to book a ticket from LAX to OAK. Could you book a ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: Travel dates are Jan, 31 and Feb, 2.

ASSISTANT: May I know your name please?

USER: I am Ryan Lopez.

ASSISTANT: Do you have any requirements?

USER: I prefer to travel in business class.

ASSISTANT: May I know the connection limit please?

USER: I need connecting flight.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Thank you.

ASSISTANT: Thank you for approaching us.