You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I would like to meet my brother at Boston, please help me in booking a ticket from PHL to BOS.

ASSISTANT: When you are willing to travel?

USER: My planned trip dates are on Aug 1 and Aug 3.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: May, I know your good name?

USER: My name is Dorothy Miller.

ASSISTANT: Do you have any other requirements?

USER: I would like to depart in the afternoon.

ASSISTANT: We found 1018 UA airlines with single connection with price 200. Shall I proceed with the booking?

USER: If it is a business class, please proceed?

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thank you.