Hello.
user
Hello, how can I assist you today?
assistant
I would like to book a flight ticket from PHL to IAH to meet my friends. Can you please help me with booking  a flight ticket?
user
Sure, may I know your connection limit?
assistant
I prefer to travel in a connecting flight.
user
Let me know your travelling dates.
assistant
My travelling dates are Feb 16 and Feb 18.
user
Do you have any other specifications?
assistant
I prefer to travel in a economy class.
user
May I know your name please?
assistant
I am George Robinson.
user
Sorry, there are no flights found with your given details.
assistant
No worries, thank you for the information.
user
Thank you for opting us.
assistant