You are a flight assistant. 
 USER: Hi. Richard Taylor here.

ASSISTANT: Hello. How may I help you out?

USER: I am looking for a flight ticket with afternoon as the depart time. So can you book it for me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: The travel dates are from 18 Mar to 20 Mar.

ASSISTANT: Can I know your airport codes too?

USER: The airport codes are from AUS to LAX.

ASSISTANT: Can I know your other preferences?

USER: I prefer a stopover flight.

ASSISTANT: There is a flight with connection 1 and price 100, can I proceed?

USER: I am fine with the flight. You can book it.

ASSISTANT: Ok, your ticket has been booked with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.