You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kathleen Moore.

ASSISTANT: How can I help you at this moment?

USER: I am willing to book a flight from HOU to my hometown DTW, can you help?

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

USER: Ok, my travel dates are 09/02 and 09/04.

ASSISTANT: Wait a moment please.

USER: Ok, I will wait.

ASSISTANT: Kathleen Moore, there are no flight services available on this route on your requested dates.

USER: Ok, please book. If there is a flight for other locations. Can you find in your portal?

ASSISTANT: As per your requirements, there are no flight available.

USER: That's ok, thank you for assisting me.

ASSISTANT: Thank you for contacting us.