You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit one of the historical places in SEA, can you please help me in making an airline reservation from ATL?

ASSISTANT: Sure, I am here to help you out. May I know your travel dates please?

USER: My travel dates are Nov 23rd and Nov 25th.

ASSISTANT: Can you please share your connection limit?

USER: I need a single connection.

ASSISTANT: Do you have any other specification?

USER: The depart time should be evening. I will prefer to travel in business class.

ASSISTANT: May I know your name please?

USER: Mark Robinson.

ASSISTANT: Mark Robinson, there are no flights available in your route with your preferences.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us.