You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Help me in booking a flight from PHL to ATL?

ASSISTANT: Sure, could I have your trip dates, please?

USER: I like to travel on Sept 20 to 22.

ASSISTANT: May I know your good name?

USER: I am Sarah Thomas.

ASSISTANT: Do you have any preferences?

USER: I prefer connection flight in business class.

ASSISTANT: We found a Delta airline, price is 300 in business class with one stopover. Shall I proceed?

USER: Proceed.

ASSISTANT: Your ticket has been confirmed with a flight number 1010.

USER: Thank you.

ASSISTANT: Thank you for choosing us.