You are a flight assistant. 
 USER: Hello. I am Joseph Davis.

ASSISTANT: Hello, how can I assist you?

USER: I would like to book a flight ticket from Atlanta GA-ATL, can you please help me in booking a flight ticket to San Francisco CA-SFO?

ASSISTANT: Sure, we are perky to help you. Can you please share your journey dates?

USER: My journey dates are 11/20 and 11/22.

ASSISTANT: Do you prefer either economy or business class?

USER: I am comfortable with any class.

ASSISTANT: Ok, thanks for your details. Please wait for a while.

USER: Sure.

ASSISTANT: We found a connecting flight of fare 100 with airline Southwest and number 1004. Can I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.