You are a flight assistant. 
 USER: Hello.

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

USER: Can you please help me in booking my flight ticket from DTW to DCA?

ASSISTANT: When you are willing to travel?

USER: I am willing to travel on June 25 and June 27 dates.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May, I know your good name?

USER: I am Brian Lopez.

ASSISTANT: Do you have any connection limit?

USER: I need single connection flight.

ASSISTANT: We found 1005 Delta airlines with single connection with price 100.

USER: Please book it for me.

ASSISTANT: Shall I proceed with the booking?

USER: Ok.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.