Hello.
user
Hello, do you need any help from us?
assistant
Can you help me to book a ticket from HOU to AUS?
user
Sure, may I know your trip dates?
assistant
Ok, please check for the flight which is available for my planned dates  which are Nov 19th and Nov 21st respectively.
user
Ok, could I have your name please?
assistant
Ok, my name is Dorothy Johnson.
user
Ok, do you need direct or connecting flight?
assistant
Ok, my specification is a connection flight.
user
Ok, do you have any other specifications?
assistant
Yes, I need to depart during afternoon.
user
Sorry, there is no flight on your requested travelling dates.
assistant
That is ok, thank you for assisting me.
user
You are welcome, have a great day.
assistant