You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Matthew Rodriguez here. Could you book my ticket from OAK to LGA?

ASSISTANT: Sure, could you mention your depart and return dates?

USER: My trip dates are 07/19 and 08/21.

ASSISTANT: Do you need a direct flight?

USER: I need a connecting flight.

ASSISTANT: Please, wait a minute.

USER: Ok.

ASSISTANT: Sorry, currently there are no fights available to your destination place.

USER: No problem, thank you.

ASSISTANT: Thank you for availing us.