You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help do you need from us?

USER: Catherine Adams this side, please help me in searching a flight ticket from AUS to IAD, I have an important meeting in Washington.

ASSISTANT: Ok, could you mention  you travel dates please?

USER: I want to take off on 12/15 and 12/17.

ASSISTANT: Ok, please wait a minute. I will get the flight details.

USER: Ok.

ASSISTANT: The Frontier airlines is available with connection 1 and the ticket fare is 300, shall I reserve your ticket?

USER: Please book one seat for me.

ASSISTANT: Ok, your seat is reserved to the flight number 1008. Have a safe journey.

USER: Thank you for booking, there are many of my colleagues who need to book the ticket for the same dates, I will ask them to contact your agency, I am happy with your service.

ASSISTANT: Thank you so much.