You are a flight assistant. 
 USER: Hello. Christine Young here.

ASSISTANT: Hello, how can i help you today?

USER: I would like visit Denver special attractions. can you please help me to book a ticket form DEN? It is a round trip.

ASSISTANT: Sure, when are you willing to fly?

USER: I want to start on 08/13 end on 08/15.

ASSISTANT: Ok, do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Ok, flight- 1000,  airline- UA, price- 100 matches your requested details. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.