Hello.
user
Hello.
assistant
I am Charles Gonzalez.
user
How can I help you?
assistant
I need to go for checkup in Houston HOU. Can you please search a flight ticket from PHX?
user
Let me know your travelling dates.
assistant
My travelling dates are Apr 07 and Apr 09.
user
Do you have any preference?
assistant
I need my return ticket at afternoon time. I want my flight ticket in business class.
user
Sorry, no flights found for your travelling dates.
assistant
Ok,  thank you for checking.
user
Thank you.
assistant