You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I want to go for a scientific exhibition which is held in Austin. So can you book a ticket from DEN to AUS. My journey dates are from 06/24 to 06/26.

ASSISTANT: May I know your travelling dates? Ok, please wait for while.

USER: Make sure that price should not exceed 200 and connection limit must be 1.

ASSISTANT: Ok, I will check the details and revert you.

USER: I am Samuel Hall.

ASSISTANT: Sorry for waiting you, we were founded a flight that matches your requirements.

USER: Ok, book the ticket.

ASSISTANT: Shall I book a flight? Ok, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for connecting us.