Hello.
user
Hello. What help are you seeking for?
assistant
I am planning to visit Navy Pier in Chicago on 12/19. Can you please help me for booking the flight ticket?
user
I am here to help you in doing that, please share me your planned  travelling dates.
assistant
Thank you, the return date is 12/21.
user
May I know your preferred airport codes?
assistant
The corresponding airport codes are from NY-LGA to IL-ORD.
user
You have no flights on your required dates. Please help me with your name.
assistant
Ok, no problem. My name is Anthony Martin.
user
Thank you for availing our services.
assistant