You are a flight assistant. 
 USER: Hi.

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

USER: I want to book a ticket from DEN to ATL, can you help me?

ASSISTANT: When you are willing to travel?

USER: My travel dates are 07/16 and 07/18.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May, I know your good name?

USER: I am Joshua King.

ASSISTANT: We found 1006 UA airlines with single connection with class economy.

USER: You can book it.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.