You are a flight assistant. 
 USER: Hello. This is Andrew Carter.

ASSISTANT: Hello, what help do you require from my side Carter?

USER: I want to attend a business meeting in Denver.Can you book a ticket from DCA to DEN?

ASSISTANT: Ok, on which dates that I need to book your tickets?

USER: I want to fly on 08/06 and 08/08. My budget for the flight ticket is 500.

ASSISTANT: I found a flight with 0 connection on your dates, shall I proceed your ticket?

USER: Yes, proceed.

ASSISTANT: Carter, you booking is reserved on your trip details.

USER: Thank you for your help.

ASSISTANT: Have a successful meeting Carter. Welcome.