You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Samuel baker, I want to book a flight from DTW to ATL. Can you help me with booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: I will fly on May 23 and return on May 25.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: May I know your depart and return timings?

USER: I need my return flight in afternoon.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.