You are a flight assistant. 
 USER: Hello. I am Stephen Hall.

ASSISTANT: Hello, how can I assist you now?

USER: Please book a flight ticket from DTW to LGA.

ASSISTANT: Sure, please share me your planned journey dates?

USER: My planned travel dates are Mar, 19 and Mar, 21.

ASSISTANT: May I know your connection limit?

USER: I need single connection.

ASSISTANT: Please mention your depart and return flight timing?

USER: My return time should be at afternoon.

ASSISTANT: Do you have any other requirement?

USER: No.

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

USER: It's ok, thank you for the information.

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