You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I'm planning to visit Boston, can you please book a ticket from DTW to BOS?

ASSISTANT: Sure, please mention when you planned to travel?

USER: I would like to depart from my location on 13th Nov and I want to return back by 15th Nov.

ASSISTANT: Do you want a connecting flight?

USER: I need direct flight.

ASSISTANT: Is there any other requirement related to booking?

USER: I want to depart on the afternoon time.

ASSISTANT: May I know your good name?

USER: My name is Gary Walker.

ASSISTANT: Thank you for the details, sorry there is no flight available on your given journey dates.

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

ASSISTANT: Thank you for visiting us, we hope see you again.