Hi.
user
Hello. How can I assist you?
assistant
I need to book a ticket from DFW to LAS. Could you book a ticket?
user
Sure. Can I have your planned journey dates?
assistant
Departure is Nov, 18 and return date is Nov, 20.
user
May I know your name?
assistant
My name is Alexander Smith.
user
Let me know your connection limit.
assistant
I need connecting flight.
user
Do you have any specifications?
assistant
I prefer to travel in business class.
user
Please, wait a  minute.
assistant
Sure.
user
Thank you for waiting, there were no flights available that matches your requirements.
assistant
Thank you.
user
Thank you for choosing us.
assistant