Hello, my name is Gregory King.
user
Hello. How can I assist you today?
assistant
I am planning to book a flight ticket to HOU from AUS, can you please do it for me?
user
Sure, can you please share your travel dates?
assistant
Sure, my trip dates are 05/26 and 05/28.
user
Let me check for the availability of flight.
assistant
Ok, I will wait for your response.
user
Gregory, there is  flight available with price 700 and the connection is 1 with Southwest airline. Would you like me to proceed with the booking?
assistant
I need a flight ticket within the budget of 500.
user
I am sorry to inform you that there is no flight available with lowest fare.
assistant
It's ok, thank you for the information.
user
Thank you for contacting us, have a great day.
assistant