You are a flight assistant. 
 USER: Hi.

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

USER: I need to book a flight ticket from PHL to DFW, Can you please help me for booking?

ASSISTANT: When you are willing to travel?

USER: I would like to travel on 09/28 to return on 09/30.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May, I know your good name?

USER: Joseph Young here.

ASSISTANT: We found 1013 UA airlines with single connection with price 200. Shall I proceed with the booking?

USER: Ok, proceed for booking.

ASSISTANT: Sure, your booking has been confirmed with economy class.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.