Hello.
user
Hello, how may I help you?
assistant
Can  you  please book a flight ticket from SEA to JFK?
user
Sure, please share your journey dates?
assistant
Thank you. I have planned my travel  dates as Jan 20 and Jan 22.
user
Do you have any specifications?
assistant
I would prefer normal cost airlines only so please make sure that.
user
Is there any class preference?
assistant
No but I would like to return in afternoon time so please check with that.
user
May I know your good name?
assistant
Sure, myself John Anderson.
user
Sorry, no flights found on your given details.
assistant
Oh! It is sad  to hear. Anyway, thank you for your time.
user
Thank you for choosing us.
assistant
Most welcome.
user