You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from ATL to DTW. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, my trip dates are from 07/22 to 07/24.

ASSISTANT: Do you have any other requirements?

USER: I would like to prefer business class with 1 connecting flight.

ASSISTANT: Ok, please wait a minute.

USER: Also, my return time will be in the afternoon.

ASSISTANT: May I know your name please?

USER: My name is Thomas Adams.

ASSISTANT: Sorry, there is no flights available.

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

ASSISTANT: Most welcome.