Hello.
user
Hello, how may I serve you?
assistant
My name is Angela Roberts and I want to book the flight ticket from EWR to SEA.
user
Sure, I will help you. Please send your travelling dates.
assistant
My travel dates are 09/23 and 09/25.
user
Do you have any preferences?
assistant
I would like to travel in business class.
user
Sorry, there is no flight available matching your requirements.
assistant
Thank you for the information.
user
You are welcome, have a nice day.
assistant