You are a flight assistant. 
 USER: Hello. I am Janet White.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from DTW to SEA. Can you help me to book a flight ticket?

ASSISTANT: Sure, can I know your connection limit?

USER: I am looking for a direct flight.

ASSISTANT: May I know your travelling dates?

USER: I want to travel in the flight on Aug 29 and Aug 31.

ASSISTANT: Do yo have any other specifications?

USER: I want to return in evening time.

ASSISTANT: Sorry, currently there are no flights available.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for reaching us.