You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please help me in booking a flight ticket from DTW to LGA.

ASSISTANT: Sure, I am here to help you. Can I have your travelling dates?

USER: Oct, 1 and Oct, 3 are my travelling dates.

ASSISTANT: Do you prefer any break in between journey?

USER: Yes, I need a break.

ASSISTANT: Are there any other specifications for you?

USER: I would prefer to fly with normal cost airlines only and my return time should be at afternoon.

ASSISTANT: May I know your good name?

USER: Ryan Williams here.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for choosing us.