Hello.
user
Hello, how can I assist  you now?
assistant
Can you please help me to book a flight ticket from LAX on Jan 4th?
user
Sure, I will help you with that. Can I have your return details please?
assistant
Thank you. My destination airport code is BOS and the return date is Jan 6th.
user
Ok,  please let me know your  preferable class.
assistant
I would prefer a business class flight to travel.
user
Do you  want to  travel at any specific timings?
assistant
I am looking for a flight which returns in the afternoon time.
user
Do you  have any other specifications?
assistant
I prefer a single connecting flight.
user
Can I have your  good name please?
assistant
I am Timothy Walker.
user
Sorry to inform you that no flight is available to you on your  planned  dates.
assistant
It's ok, not a problem with that. Thank you for searching the flight.
user
Thank you for choosing us, have a good day.
assistant