You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to book a ticket from ATL to LAS, can you please help me out?

ASSISTANT: Sure, I am glad to help you. May I know your preferable dates?

USER: I am travelling on these dates Sept 17th and 19th.

ASSISTANT: Ok, please share your connection limit.

USER: I need single connected flight.

ASSISTANT: Is there any class preference?

USER: I prefer business class.

ASSISTANT: Do you have any other concerns to meet?

USER: I don't have any other references.

ASSISTANT: To proceed further, we need your name.

USER: Kimberly Phillips here.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for choosing us.