You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me to book a flight in business class to reach Chicago?

ASSISTANT: Sure, on what dates are you planning to travel?

USER: My planned dates are on Aug 21st to 23rd.

ASSISTANT: From which airport would you like to leave?

USER: My source airport code is ATL.

ASSISTANT: How many connections do you need?

USER: I prefer it.

ASSISTANT: Please provide your name.

USER: Sure, my name is Karen Johnson.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights going on your way at this moment.

USER: No issues, thank you.

ASSISTANT: Thank you for picking us.