Hi, I am Ryan Robinson.
user
Hello, how can I help you today?
assistant
I want to attend a seminar at Houston on  02/18 and return on 02/20, can you book a flight ticket please?
user
Sure, kindly mention your price limit.
assistant
Ok, I need a ticket with price under 200.
user
Can you mention your airport codes?
assistant
Sure, my airport codes are LGA and IAH.
user
Ok, please wait a moment.
assistant
Sure.
user
Sorry to say, no reservation found with your name.
assistant
That's ok, thank you for the response.
user
Thanks for reaching us, have a good day.
assistant