Hello.
user
Hello. How can I help you with today?
assistant
I want to buy a flight ticket. Can you please help me with that?
user
Sure, I can help you with that. Can you please help me  with the source and the destination airport codes?
assistant
I want to travel from Los Angeles, CA-LAX on 12/25.
user
Ok.
assistant
And the destination is Denver, CO-DEN. The arrival date is  12/27.
user
May I know your name to proceed further?
assistant
Please book a ticket with name Katherine Perez.
user
Sure.
assistant
Can you please check the flight with 0 connection?
user
Katherine, I am sorry to inform you that there is no flight available at your requested dates.
assistant
Its ok, no issues. Thank you.
user
You are welcome. Thank you for contacting us.
assistant