Hello.
user
Hello. How can I  help you?
assistant
I am Patrick Turner from New York. Could you please book a flight ticket from JFK to OAK?
user
Your travelling dates please?
assistant
Thank you for your response, I want to take off on Feb 22 and please confirm my return ticket also on Feb 24.
user
I am sorry no flight found on your route.
assistant
Oh! It's ok no problem.
user
Thank you for choosing us.
assistant
Thank you for your service.
user