Hi.
user
Hello, How can I serve you?
assistant
Can you reserve a flight ticket with the name Christopher Lewis?
user
Ok, For that We need your specified airport codes?
assistant
I want to start a new book stall at New York NY-LGA, So I need to start from Houston TX-IAH.
user
Ok, when did you plan to reach New York and return?
assistant
I have planned to start on 12/28, my return date is on 12/30.
user
Sorry Lewis, no flights found on your preferred travel dates.
assistant
Its ok, thank you for your assistance.
user
 Thanks for choosing us.
assistant