Hello.
Hello, how may I help you?
Can you help me in  booking my flight ticket from PHL to HOU?
Sure, I am here to help you. May I know your travel dates?
My trip dates will be Jan 30th to Feb 1st.
Noted. Please wait for a while, let me check for the available flights.
Sure.
May I know your name?
I am Helen Roberts.
Sorry, there is no flight available on your preferred travel dates.
Its ok, thank you.
You are most welcome.