You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I'm Joseph Carter. Can you book a ticket from TX - AUS to DC - IAD?

ASSISTANT: OK, Joseph, may I know your dates of travel please?

USER: Sure, my travel dates are 07/04 and 07/06.

ASSISTANT: OK, please hold on.

USER: OK.

ASSISTANT: The ticket with airline Delta and number 1001 with 1 connections limit of cost 100.

USER: That's perfect! Proceed with my booking.

ASSISTANT: OK, your ticket has booked.

USER: Thank you.

ASSISTANT: Thank you. Happy journey.