Hello, Sarah Walker here.
user
Hello, how may I assist you today?
assistant
I am planning to visit Chicago, can you please book me a ticket from AUS to ORD?
user
Sure, can you provide your travel dates please?
assistant
My preferable journey dates are from Apr 12 to Apr 14.
user
Do you have any specifications?
assistant
I prefer business class flight.
user
Sorry, there are no flights on your required dates.
assistant
Ok, not an issue. Thank you for providing information.
user
Thank you for choosing us.
assistant