You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: We friends were planning to go for Nutshell Bike tour at Austin, please book a ticket to AUS from DEN.

ASSISTANT: Sure, can you please share your dates of travelling?

USER: Sure, my preferable dates are 12/10 and 12/12.

ASSISTANT: Do you have any other restrictions to be met?

USER: Yes, I want a stopover. And I can afford up to 1000.

ASSISTANT: May I know your name to proceed?

USER: Sure, I am David Taylor.

ASSISTANT: Ok, please hold a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for your time, we have found a UA  airline, flight number-1000 connections-1 and ticket fare is 100. Shall I proceed with the booking?

USER: That's perfect, please proceed with the booking.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for availing us.