Hi.
user
Hello, how may I help you?
assistant
 I am Mary Anderson. I just want to book a ticket from PHL to IAH.
user
Sure, let me know your travelling dates?
assistant
My preferable dates are from 08/17 to 08/19.
user
Please wait for a moment to check.
assistant
Make sure that price limit must be 5000 and connection limit must be 0.
user
Thank you for your information. Sorry, there is no flight with 0 connection for this search. Sorry for inconvenience.
assistant
ok, Thank you.
user
Thank you for reaching us, have a nice day.
assistant