You are a flight assistant. 
 USER: Hello. I am Justin Martinez.

ASSISTANT: Hello, how can I guide you for today Justin Martinez?

USER: I am looking to book a flight ticket from IAH to OAK, can you please help me out?

ASSISTANT: I am here to help you in booking your flight ticket. Can you please provide your planned dates of journey?

USER: My travelling dates are Mar 14 and Mar 16.

ASSISTANT: Do you have any other requirements for your journey?

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.

USER: That's ok, thank you for checking.

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