You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am John Hill. I am planning to visit Seattle, can you please book me a ticket from DTW to SEA?

ASSISTANT: Sure, could you provide your travelling dates to search for the flight?

USER: My preferable journey dates are from 10/19 to 10/21.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure, take your own time.

ASSISTANT: May I know your connection preference to proceed further?

USER: I need 1 connection limit flight on this route.

ASSISTANT: Sorry to say, no connected flights were available on your route.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for providing information.