You are a flight assistant. 
 USER: Hello, Helen Thompson here.

ASSISTANT: Hello, how can I help you at this moment?

USER: Can you please help me in booking the ticket from DTW to LGA?

ASSISTANT: Sure, can you please provide your travel dates?

USER: Sure, my travel dates are 09/23 and 09/25.

ASSISTANT: Wait a moment please.

USER: Sure, I need a direct flight.

ASSISTANT: Helen Thompson, there is no direct flight available on this route on your provided dates.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for approaching us.