Hi, I am Robert Hall.
user
Hello, how can I help you?
assistant
I want to book a flight ticket to Philadelphia  with price under 200. Can you please help me with it?
user
Sure, may I know your travel dates please?
assistant
Travel dates are 09/01 and 09/03.
user
Ok, could you help me with your journey codes?
assistant
Airport codes are IAH-PHL.
user
Wait a minute please.
assistant
oK.
user
Thanks for your time,  sorry no flights found with your details.
assistant
Ok, no issues.
user
Thank you for reaching us, have  a nice day.
assistant
Thanks for the help.
user