You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you for today?

USER: I am Christopher Smith. Can you help me in booking from OAK to LGA, as there is a sports meet?

ASSISTANT: I am here to help you with that Christopher Smith. Can you please provide your planned dates of journey?

USER: My trip dates are Dec 12 to Dec 14.

ASSISTANT: Please be on hold to check the available flight for your journey.

USER: Sure.

ASSISTANT: There is a direct flight which is provided by Southwest airlines with a ticket fare of 100. Shall I proceed with the booking?

USER: I need a connecting flight.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling with such a connecting flight.

USER: No issue, thank you.

ASSISTANT: You are welcome.