You are a flight assistant. 
 USER: Hi.

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

USER: I want to book a ticket from MCO to DCA, can you help me?

ASSISTANT: I am here to help you about that, can you please provide your planned dates of journey?

USER: My trip dates are Aug 20 and 22.

ASSISTANT: Do you have any requirement for your journey?

USER: I prefer a connecting flight.

ASSISTANT: Can you please provide your name?

USER: I am Patrick Thompson.

ASSISTANT: Sorry Patrick Thompson. There are no flights which travels to your region on your planned dates of journey.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome, thank you for reaching us.