Hello.
user
Hello. How can I assist you now?
assistant
I need you to book a flight ticket from EWR to IAH. Please help me.
user
Sure, I am happy to help you with that. Can I have your travel  dates please?
assistant
February 20 and 22 are my planned travelling dates.
user
Ok, please let me know  your good name.
assistant
My name is Helen Rodriguez.
user
Do you  prefer any specific class to travel?
assistant
I am ok to fly in any class/.
user
Do you have any other specifications?
assistant
I would like to return in the afternoon.
user
Sorry to inform you that  no flight is available to you on your travel dates.
assistant
That's ok. Thank you.
user
Thank you for choosing us, have a good day.
assistant