Hello.
user
Hello, how can I assist you?
assistant
I am planning to visit Philadelphia, will you help me in booking the flight ticket form IAD to PHL?
user
Sure, may I know your travel dates?
assistant
My travelling dates are Oct 15 and Oct 17.
user
Do you have any specifications?
assistant
I need a connecting flight.
user
Ok, please wait  a minute.
assistant
Make sure my class must be economy.
user
We found an airline UA with flight 1023 having a fare 100 with single connection. Shall I proceed with booking for economy class?
assistant
You can proceed booking with the name David Lee.
user
Ok, your booking has been processed.
assistant
Thank you for helping me.
user
Thank you.
assistant