Hello,.
user
Hello, how may I serve you at this moment?
assistant
I am Paul Green. Can you help me in booking a flight ticket from EWR to ORD?
user
Sure, I will help you. Please send your travelling dates.
assistant
I want to travel on 04/14, and return on 04/16.
user
Do you have any class or time preferences?
assistant
I need to return in the evening time.
user
Sorry, there is no flight available on your journey dates.
assistant
Ok, no issues. Thanks for the information.
user
You are welcome, have a nice day.
assistant